Massively cut the intelligence budget. Too much money and power is being wielded in secret with no accountability. Term limit people in key positions.All of your good suggestions, in a sane world, with Trump-like conservative Representatives and Senators and Trump, or a President like him, would be attainable, however, we don't live in that world.
Electoral reform, of course. States should agree on a system for national elections that includes paper ballots, in-person voting, national voter ID, etc.
Somehow reform the party system. We have unelected partisans deciding our choices for office. I don’t have a specific solution, but the Rep-Dem uniparty isn’t working.
You are absolutely correct. Which is why when we retired we bought land in a very rural part of a deep red state, set up a small homestead, and started prepping and praying. I fervently do not want war, but if it comes, I will be ready. I took an oath.