"Censorship" is a Bad Word because of Nazi book burnings, Soviet political censorship, Fahrenheit 451, and other notions of "government censorship". Its "Bad Word" status means that we don't want it to apply to the kinds of blocking that we think are legitimate.

But the reality is that censorship is not all, or even mostly, bad. YouTube censors snuff videos. And porn. Is that bad? How about videos showing how to make bombs? What about nuclear bombs? What about anthrax? What about biological weapons?

Clearly, YouTube and other platforms must and will draw lines on what does and doesn't constitute acceptable content.

The question isn't about censorship. It's about where the line should be drawn.

For whatever reason, there's a lot of people who think that instructional videos on guns should be in-bounds rather than out-of-bounds. To the extent people are talking about "censorship" writ-large it is a distraction from having to justify making specific kinds of content widely available.