Someone (YouTube) should just run a recurring ad campaign. Instead of traditional ads it's "Congratulations, you're one of today's lucky 10,000 and you're going to learn about bots and boundaries you should establish while on this platform." [0]
The number could be scaled up. They could select out populations that seem 'with it' and bias it toward anyone who interacts with bot comments other than to report them. I'm sure there are other useful signals.
Without getting into the 'how to block bots' side of the problem, this is one way YouTube could help with the user education without individual creators having to make videos like this or recurring community posts. As noted in other comments, a purely technical solution to ban bots probably isn't going to work.