1. Someone who is radicalized digging deeper
2. Someone who is radicalized changing their mind
3. Someone who is not radicalized getting radicalized
#1 is bound to happen, #2 has no chance of happening, so at this point, preventing #3 is the way to go. Keeping these already radicalized people on Youtube achieves nothing. On the other hand, keeping them on Youtube gives these them a huge platform to spread misinformation. Newsmax nad OANN don't have anywhere near the reach Youtube does, especially outside the existing bubble.