A lot of people here have really poor understandings of what's going on here.
I really doubt there's collusion going on here. As
@heathercho noted, PR is a much more straightforward explanation. People whine about nazis on youtube, the media starts writing a hitpiece about it and asks youtube for "a comment". Youtube checks their voluminous rulebook and easily notes a reason to block them, and says "oh, sorry about that, they're gone". That is not collusion. Collusion would be the WSJ reporter explicitly asking for youtube to block them. The WSJ reporter has no reason to risk that. It's way too easy just to do it the straight way.
If this is what happened (and it almost certainly is), then if someone still wants to push the collusion angle, then you're basically arguing collusion can be achieved by a private citizen publicly discussing a popular issue and a business reacting to avoid being tarred with that brush. That could arguably cover boycotts in general.
This is also why people get blocked from multiple platforms at once. You don't think these media dipshits aren't emailing twitter and facebook for a comment on what services they provide Ethan Ralph?
Also, people have a really poor understanding of CDA 230. What it guarantees is that if you have user submitted content on your site, but it shouldn't be misconstrued as your site authoring it. You still have a first amendment right to boot anything off your site you want. For the same reason null can ban anyone from kf for any reasons, without losing CDA 230 protections, so can youtube.
In fact, youtube can openly come out as a left wing video streaming platform, and police their rules as such, it'd be protected. The selection of content you display on your site is allowed to be curated, because that selection itself is speech. The body of each piece of content, however, is the responsibility of the author.
Kiwifarms is about lolcows. Null can remove threads on non-lolcows if he wants.
The only way to really lose CDA 230 protections is if you wipe away the line between your users' content and your platform's content. And that has to be tied very finely to the content itself. Just deleting stuff doesn't qualify. You'd have to like, edit people's posts by hand and change the meaning of their post. And even then, you're allowed to do that, so long as you put in a little note like "edited by moderator: removed line about blah blah blah".
All acceptable under CDA 230. And while youtube are being shitheads with this, fucking with 230 is the Samson option. It would destroy us all, including this very site.