Tbf i highly doubt most (if any) countries would start a revolution over that. At best, they would protest and call for the leader's removal, which is what is happening in America.

The issue is that there's no real chance these protests work in America as the government's far too partisan to impeach or 25th Amendment remove Trump, and Trump is too stubborn to resign.

What we need to overthrow the government is either a military coup (which is almost guaranteed to make the country far worse/more tyranical) or a major economic crisis (akin to the 2008 Recession at a minimum) and a spark. I dont see either of these as particularly likely, especially since Trump is going to be out of office in 2028, and I doubt a Republican will realistically win the next election. It also depends on how the midterm elections go tho, cus thats the last real chance for Americans to take power out of Trump's hands in his term (and if the Republicans maintain their majorities, I believe Trump is going to act far more aggressively/unrestrained as he wouldnt have to worry about losing power, which i can see leading to a revolution).

Of course there have been other catalysts for revolutions, especially in American history, however i dont see them as likely causes against Trump considering they usually relate to high taxes and/or revocation of property, which conservatives generally arent doing (openly at least), nor do they advocate for. Public perception of tariffs arent nearly low enough to start a major revolution over them (yet), and by the time they do become a major issue to the general public, we would've already entered an economic crisis.

granted, im not particularly knowledgeable in political science, so i could absolutely be wrong lol