No phonetic transcription in English of any similar phrase AFAIK, but isn't it just so annoying when people tell you, if you've got a problem, that "all you need to do" is......
If you google it, you see that the phrase often comes alongside... "it's easy..."

So I'd suggest
One thing is certain, it's no longer possible/acceptable to say "all you need to do is..."

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Note added at 2 hrs (2018-06-03 17:45:08 GMT)
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The following phrase has just come to mind: the only irony one could find is the fact that it is "langue de bois", and politician speech....
"there are no quick and easy answers" ---
the days of quick and easy answers are long gone.

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Note added at 2 hrs (2018-06-03 17:45:31 GMT)
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politician speak I meant

An idiomatic suggestion that is close, although not spot on. However, when it comes to goodness of fit, it might do the trick.

Nom commun

yakafokon \ja.ka.fo.kɔ̃\ masculin (nombre à préciser : {{s}}, {{p}}, {{d}}, etc.)

(Familier) Solutions simplistes et irréalistes car négligeant des obstacles majeurs.
[…] apprenez à renvoyer les sollicitations à leurs expéditeurs et aux rois du « yakafokon ». Répondez-leur plutôt : « Vous avez raison », ou « C'est une très bonne idée ». Ajoutez immédiatement : « Et si vous vous en occupiez ? » […] — (Christophe Labarde, Je dis (enfin) oui à mon projet de vie)


Dumbing down is the deliberate oversimplification of intellectual content in education, literature, and cinema, news, video games and culture. The term "dumbing down" originated in 1933, as movie-business slang used by screenplay writers, meaning: "[to] revise so as to appeal to those of little education or intelligence".[1] Dumbing-down varies according to subject matter, and usually involves the diminishment of critical thought, by undermining intellectual standards within language and learning; thus trivializing meaningful information, culture, and academic standards, as in the case of popular culture.

Philosophically, the term "dumbing down" is a relative in definition, because what is considered dumbing down depends on the taste, value judgement, and intellect of the person. In Distinction: A Social Critique of the Judgement of Taste (1979), the sociologist Pierre Bourdieu (1930–2002) proposed that, in a society in which the cultural practices of the ruling class are rendered and established as the legitimate culture of that society, that action then devalues the cultural capital of the subordinate social classes, and thus limits their social mobility within their own society.




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Note added at 4 hrs (2018-06-03 20:01:14 GMT)
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What is an example of American culture being dumbed down? - Quora
https://www.quora.com/What-is-an-example-of-American-culture...
20 Aug 2017 - Grammarly's free writing app makes sure everything you type is easy to read, .... I think we have been dumbed down through a process called teaching to the test ...


Depressing Survey Results Prove the Dumbing Down of America Has ...
https://www.charismanews.com › Opinion

1 Apr 2016 - If we continue to put garbage in, we are going to continue to get garbage out, and that is the cold, hard reality of the matter.
I'm With Stupid: How The Internet Is Dumbing Down The Next ...
www.stateofdigital.com/how-the-internet-is-dumbing-down-the...

8 Apr 2013 - Why should we care about how kids receive information these days? Because it affects everything, their future and ours.
Rap at the Proms: Must everything be dumbed down? - Daily Express
https://www.express.co.uk › Comment › Express Comment

20 Apr 2013 - UNTIL this week, if I was writing a piece about the Proms this is how I would have started: There is no finer British institution than the Proms.
Things cannot be dumbed down any further, warn experts
www.thedailymash.co.uk/.../things-cannot-be-dumbed-down-any...

15 Jan 2014 - Things cannot be dumbed down any further, warn experts ... Researchers warned it will soon be impossible to dumb down news and entertainment media any .... It's Like eBay, But Everything Sells in 90 SecondsTophatter.
Do you think society is getting dumbed down or smarter?
20 answers
17 Dec 2017
Has America been 'dumbed down' over the years?
20 answers
7 Oct 2014
More results from www.quora.com

Maybe

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www.tate.org.uk/art/art-terms/m/minimalism

It flourished in the 1960s and 1970s with Carl Andre, Dan Flavin, Donald Judd, Sol LeWitt, Agnes Martin and Robert Morris becoming the movement’s most important innovators. ... Qualities of minimalist art. Aesthetically, minimalist art offers a highly purified form of beauty.
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What is Minimalism? - Becoming Minimalist
https://www.becomingminimalist.com/what-is-minimalism/

Minimalism is the intentional promotion of the things we most value and the removal of everything that distracts us from it.
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quick fixes
temporary patches

A one-size-fits-all approach to international migration is simply unworkable given the highly varied contexts in which migration takes place. Therefore, the motion stating that ‘there is too much international migration’ does not in my view lend itself to a meaningful debate.
https://www.iom.int/jahia/webdav/shared/shared/mainsite/abou...

Limiting immigration ‘cannot be one-size-fits-all approach’
https://www.thetimes.co.uk/article/limiting-immigration-cann...

A one-size-fits-all approach to immigration can’t help us make the post-Brexit choices that the Government and the public now face.
http://www.britishfuture.org/featured/immigration-statistics...