I think it's a nuanced question - I've heard that the Cuban community in Florida is very Republican because they're seen as stronger against the Cuban regime.
In other cases, I think people are very willing to vote for people who promise to help them with their most immediate problems (regardless of how credible those promises are), and overlook the rest.
And we should never underestimate the willingness of people to close a door behind them once they've gotten through it.
Another thing to consider is that many people simply aren't that engaged, and the news ecosystem on both sides of the border has deteriorated to the point where it's very easy to go through life with bad information, or no information at all.
It's probably not that hard for a low-information voter to be swayed by big talk, even if they're not a cultist.