I certainly wouldn't suggest such a move would be broadly regrettable, but don't agree with the implication that I'm making excuses. Many people are attracted to the subtle cultural, political, and financial differences the U.S provides, some aren't, and that's ok. The countries and people are more similar than they are different. The problems Canada is currently facing though is partially to do with stagnant cultural values (that are also more similar to the U.S than different) and deeply flawed policy at multiple levels of governance both current and historical, and Trudeau but he's just the latest. A nation is more than it's current set of politicians though—obviously also true of the U.S—and to leave for more money would mean I'd be dismissing the factors that exist despite the bureaucracy.

It just depends what your personal circumstances are whether that's a reasonable deal or not, and it's not for me to judge one way or another. If I could make U.S software money from Canada, it's a no-brainer, I just can't and wouldn't really want to live there long-term. The outcome I could hypothetically have doesn't seem all that compelling, but it probably does for a great number of people for obvious reasons.

For me though, there's something a bit too intensely capitalist I guess that rubs me the wrong way. So many things and people are American size, and super, and mega, and excessive, and seemingly lacking nuance in a way I just don't like. I do get used to it and forget I'm there, and always enjoy the visit, but I can't see myself being there for more than 6 months.