I'm not saying you owe the person in question better, but you owe this community better if you're participating in it.
As for the actions themselves, they're pretty much his standard operating procedure:
> I think I can get away with bullying these people, so I will
When he talks about the existing agreements being unfair, he means that we have leverage that we're not using. The proposed tariffs are proportional to the trade deficit because the trade deficit is a reasonable proxy for how invested that country is in its economic relations with the US. You can extort more from somebody who is heavily invested, and less from somebody who is lightly invested. It's a classic protection racket, just on a sliding scale.
He's trying to look ignorant because it's at least a better look than showing the malice that actually drives him.
There is sound reasoning behind the tariffs, and I can at least understand the motivations. However, to execute the vision behind the tariffs would be tantamount to severely contracting the American economy, and the voters would never agree to go hungry in order to militarily independent.
He knows what he's doing, but him and his ilk are openly lying to the American public because no one would ever agree to it.
If about 30 million people count as a fringe number, yes.