GOP control of Congress plus a Trump 2nd term gets us House Bill 20, which we've covered here. That's what real border security legislation looks like, not like the "compromise" where the democrats pretend to care about the issue.

No it doesn't. There's no way the Republicans will have 60 votes in the Senate, which is what you would need to overcome a filibuster.

Trump would be constrained by the same laws that limited him in his first term, and which limit Biden. The opportunity to change those laws has passed - for the first time in a generation or more, you had Democrats willing to support an immigration enforcement directed bill, without having even something for the DREAMERs in it. The GOP decided to pass. If Trump gets back in office, nothing remotely close to that bill is going to be on the table (and HR 2 isn't even in the same room with the table).

The GOP had their chance to score a major change for border security, and chose not to take it. Trump isn't going to save that.