I don't think they are scammers, at least they didn't used to be. I haven't worked with them myself but I'm sure it's not worth it.
There are no real secrets to YouTube anymore, all the info is out there. You should not pay that kind of money for help especially in the beginning. The exception would be if you had millions of dollars to invest in YouTube and you wanted to hire a consultant to save you some time getting started but for normal people, no.
Even if you pay for a mentorship, you still have to put in the work. They might get you moving in the right direction but you can already do that for free. I promise none of those kind of guys have any secrets worth buying for the vast majority of people.
Look, I can save you some money right now:
Start a channel in the motivation niche. Find a way to create videos using video and audio that doesn't get copyright claimed. Hire video editors from upwork, hire thumbnail designers from Fiverr. Learn how to optimize metadata yourself. Do the niche and video research yourself. Congrats, now know how to make tens of thousands per month.
The reality is, it's a fuck tonne of work, but if you wanna make money on YouTube, you can make money on YouTube. Stop looking for money making methods you can buy and just start working on something. You'll probably fail at first but if you keep working eventually you'll figure something out.
If anything you should spend your money on outsourcing content creation and not on courses/mentorship
