Are people really claiming Trump isn't worse? I think it's more that people think that Harris may be better than Trump (pretty low bar there), but still too bad to vote for. Voting for the lesser evil only goes so far. At some point the lesser evil is still too far from one's own ideals that voting for them isn't an option. Different people will obviously draw that line in different places and if I lived in the USA, I'd probably begrudgingly vote for Harris in the coming election.
Democrats basically slandering anyone who refuses to vote for their candidate as Trump supporters is fucking stupid and will hardly convince anyone to change their minds. Especially when it seems democrats have had nothing to offer the left other than "the other side is worse" for as far back as I can remember. If they want the left's votes, they need to earn them.
It seems like it's still possible to disable Gatekeeper on macOS 15: https://discussions.apple.com/thread/255759797
I haven't tried it though. It's so rare that I want to run something unsigned, I prefer leaving it enabled and then allowing whatever it is I want to run.