Harris was imperialist and colonialist, but not fascist. It's ludicrous to equivocate trump and Harris as both being fascist.
And in any case, yeah, vote for progressives in primaries. I know that there wasn't a real primary for 24, but that has more to do with Biden not stepping aside soon enough than anything else. Dem voters are getting tired of establishment enablers, and DNC leadership is no longer interfering to pick favorites (see Mamdani's victory) so we could actually see progressives taking over the party.
You're painting a false equivalency (both sides the same) and pining for other options without actually offering a solution for how to get there, implying that we just stay home and not vote at all. You're the problem. If you don't like the fascism, vote against the fascist. If you don't like the non fascist option, tough shit because there may not be a next time if the fascist wins (and he did and here we are talking about suspending elections). If you actually want better Democrats in the general for the 26 elections, you need to start paying attention now because it's primary season already, and you can and should be donating/volunteering for who you believe in.
If you're being serious about wanting an option outside of the two parties, only one of them is open to things like ranked choice to get rid of first past the post and eliminating the electoral college so that it's people and not land doing the voting. Spoiler alert: convincing people to withhold their vote helps the other guys win, and they're thrilled to keep it a two party system. You may not like somebody milquetoast like Biden, but he course corrected and arrested the slip into fascism while getting some progressive stuff through. Not enough, but it's fucking silly to say that Harris was the same as Biden and also Harris is the same as trump.