Algorithms push content to produce engagement and retention. If someone is getting radicalized by algorithms it’s because they are engaged by the radicalism.
My TikTok fyp (algorithmic content) is full of artists - mostly vocals and strings, but some brass too, along with Creepy Dave animal videos and a few British (and British style humor)comedy sketches. It’s quite enjoyable. I think the only political content I can remember is a couple of Jeff Jackson videos (NC US House if Rep), and that’s because I looked him up after my wife forwarded me one of his online bits.
People who get radicalized are ripe for picking, not converted. And if we are concerned about SM, we need to outlaw most talking head TV and talk radio along with it.