

UK and Italy are playing Trump’s game. He doesn’t negotiate. He demands tribute and only honours agreements if they are a win for him and he feels like honouring it at the time. Canada has a Trump negotiated trade agreement - the best agreement ever, in his parlance. It is apparently not worth the paper it is written on.
Countries must negotiate trade agreements - with everyone except the USA. And citizens must support their countries by not purchasing any thing from the USA.
As for the few Americans that didn’t vote for Trump, so sorry but your fellow Americans still fully support him. So it isn’t “just Trump”, it is America that is the problem. Trump is simply reflecting who the majority of Americans really are.
One bonus - they won’t be spending any more money in the US.