Yeah, they're both pieces of shit but Trump is fundamentally pretty lazy... remember when he rode around in a golf cart when he met with the G7 and they walked through Sicily?
Musk is doing a great job of taking the flak for super unpopular shit that Trump wants to do, AND he seems like he's actually motivated to put in the work.
Unfortunately, the problem is that the Americans who think America is better than everyone else and are always shouting it from the rooftops, are also mostly the people who think Trump is great and will approve of just about anything he does uncritically.
A lot of us are super fucking embarrassed about the way our country behaves and vote against it every time we can, it's just unfortunately a very difficult battle and the way our elections works makes it a bit easier for Republicans to win at the national scale, generally.