This year in particular, conservatives are not just a boomer thing. There was a surprising amount of young male voters for Trump this year, mostly led in by the podcasters/commentators favored by that demographic (Joe Rogan, Andrew Tate, ya know, assholes). So it's no surprise Trump changed his tune on the tiktok ban because he now wants to make sure these people (and people taking about these people) can still share their ridiculous thoughts and therefore become a hivemind and then all support him. Initially Trump wanted to ban tiktok, and it had nothing to do with user security or Chinese data mining, though that's what the people around him made it into - it was because tiktok was how word was spread to embarrass him at his rallies.
All this to say - age has nothing to do with conservatism. Even back when I was in high school and college, there were always those asshole kids that cared way too much about their parents' wealth and how it was taxed and had the views of an old white man.
I'm making an educated guess that the 40,000 number is a complete exaggeration. That number is coming from Trump and Musk, not an actual spreadsheet or database. Look at by how much he exaggerated the square footage of his penthouse in Trump Tower, or the size of his crowd at his inauguration.