Entering the USA was always a kind of a humiliating process, with multiple know-nothings underway with the power to deny you the entry for no reason whatsoever. And yet, I went through the process three times already, once for business, two times as a tourist, trusting that it won't be THAT bad after all, and that the most of it is just a show. I trusted the law and order in the country, and was not disappointed in the past.
Nowadays it all became much more volatile and uncertain: even though I *think* I "have nothing to hide", can I be certain, that at some point in time, I didn't like a cat video by a person who turned out to be a second-removed cousin of an "left wing extremist antifa" (heh, as if you people knew what left wing extremist even means)? Or that I didn't repost a JD meme at some point? Or that my name is not merely the same as the name of some blacklisted shmock? Why should I even take the risk of being denied the entry or even put under arrest or sent to El Salvador? The benefit of entering the USA is by far not as huge as some seem to think it is.
So no, I'm definitely not giving anybody my "last 5 years of all social media accounts"... to be honest, I probably don't even know which one I have created at some point in time, just to use it once-twice and never again. You have pushed it way too far, the hurdles are just not acceptable any more. We understand, we are not desired - fine with me, I'll spend my time and money some place else.