That's absolutely what it's about. There's nothing to debate about that.
It's the same reason Trump wanted to be able to block people on Twitter. For the same reason he wasn't allowed to do that, the White House shouldn't be allowed to disable YouTube commenting. But hey, it's not like there's a double standard in favor of the Democrats and Biden.
Different case. From the Twitter ruling: "... utilizing Twitter's 'blocking' function to limit certain users' access to his social media account, which is otherwise open to the public at large, because he disagrees with their speech".
That is completely different from not enabling comments on an announcement video where they're not enabled to anyone, but also not restricting anyone from seeing the content.
I’m curious if Twitter would’ve allowed him to blanket disable comments. Not blocking specific individuals, but just not having any comments at all.
They have an option for that (technically, “only people you @mention,” but as long as you never @mention anyone, it won’t let them reply), but I don’t remember hearing anything one way or the other about him trying to do that.
It's the same reason Trump wanted to be able to block people on Twitter. For the same reason he wasn't allowed to do that, the White House shouldn't be allowed to disable YouTube commenting. But hey, it's not like there's a double standard in favor of the Democrats and Biden.