I don't know why I'm writing this comment because I'm probably not adding anything new but, definitely, you should not view the Raiblocks as a PR disaster.
Thumbs down is NOT and bad indicator as far as YouTube is concerned. It's good. It means that people were engaged with the video.
You said it was going to be unpopular before you made it!!!
Last time I looked it was 50:50 thumbs up/thumbs down. What's wrong with that?
99% of the negative comments I saw were obviously from uninformed, speculative crypto-newbies who had just jumped on the Raiblocks pump and were scouring the internet for justification for their actions. They didn't get it from you and missed out on the dopamine rush for that 5 minutes. (OK I did see one comment from someone who said you didn't mention a particular scaling solution of theirs).
Your core audience, I believe, are like me. People who can tell that you've done more research than most in the crypto-space, that you've obviously have experience in other trading markets, and that you have your own opinions that are extremely valid and interesting to listen to.
So, personally, I appreciated the Raiblocks video and I thought this one was unnecessary.
I'm writing a comment on this one but I didn't thumbs up or comment on the Raiblocks one. You see how irrational social media is?