Just for your information: everything regarding copyright is being handled automatically at YouTube since 2006.
I even remember how a big bunch of Pokemon-focused YouTubers got banned back in 2010 by a little group of people who sent them all multiple copyright strikes and as a result they got banned in a matter of hours.
But despite all of this, YouTube apparently still gives 0 fucks about this, because it's still perfectly possible to re-create 2010's copyright disaster.
I even received dozens of copyright strikes in the past 11 years, and I cleared them all once I got them (which is why I'm still not banned regardless, despite most of my strikes were made in the time copyright strikes were permanently embedded to your channel).
So it's very easy to send fake copyright strikes, and it's even easier to counter those, even if the copyright strike in question is fully legit.