That never happens because the parties vested in that right resist every single time. Effectively. With real numbers. Not media campaigns or propaganda social media mechanisms. Largely without protesting, with no need to get into degrees of legality in doing so.
You don’t get to say “that never happens” as if it isn’t the explicit goal of an entire political party. You get to realize “we don’t let that happen”.
As to current events… the mass deportation guy won elections, why is it you expect armed resistance to federal officers carrying out the exact thing the majority of voters wanted?
You can disagree on anything you like, but, I find the “why aren’t people shooting federal officers who are enforcing immigration law!?” posts to be extreme affirmations of echo chamber. If you don’t like it, get your reps to change the laws, not suggest murdering people who you don’t like.