I dunno I doubt Trump can even backpedal on this. It's his only economic policy, and the way he has talked about it makes retreat very difficult to accomplish without admiting to everyone that he lied and is a general moron. On top of that he's pissed everyone off globally so major concessions are unlikely. Like in his first term it was relatively normal trade issues and so he got concessions from canada and mexico in USMCA and got a much needed update to NAFTA, but this time? Canada is not going to offer concessions. Europe is done with him, Asia is uniting against him, I dunno, I don't think there's a way out of this for Trump, even if he wanted to. Congress will have to act or get demolished in mid terms.
I also don't think the damage will ever be clear to Trump, he lives in his own deranged fantasy world and no one is going to tell him that this is a disaster. Senate republicans didn't take their job of advising and consenting seriously and now there's no one in the administration who can reel this back. Another key difference from 2016, back then he had reasonable rational people who live in reality and had a lot of experience in these things. Now he's literally got Dr. Oz. In terms of trade, lighthizer and greer are MILES apart in competence.
Honestly I'm starting to actually think that the only way out of all this is for the US to collapse. I just don't see how an administration this inept, corrupt and out of touch with reality can result in anything else. On top of that, far too much of the electorate are completely gone from reality. I just don't think the country can function when 30% of it doesn't live in reality anymore. I've been really trying to ignore that option and pretending like it's not a real option but.... I dunno.