It’s still worth it to register for one of the major parties to vote in their primary and push them towards your actual politics. For example, I wouldn’t consider myself “a Democrat”, but I am registered to the party and I vote as progressive as I can in primaries.
From what I’ve read, the two times Trump won, many Democrats felt that they were denied this choice, which left them disillusioned, and they didn’t vote. I don’t think that’s the main reason for Trump’s victory, but what you touched on was definitely a factor in the Democrats’ loss.
In a lot of places, you pretty much have to register for a party to have any say in the local elections. Where I live if there is a primary for an office it is guaranteed whoever wins the Republican primary is going to win the office, so if you want to have a vote in that election you have to register Republican.
I think everyone should get a vote in every primary. If there is a Republican and Democratic primary then you should get to cast a vote for a Republican candidate and a Democrat candidate. I think this would result in a better selection of nominees for offices.
