I imagine these hypothetical "other platforms" (could you name one?) will be deemed as "that bad place that platforms <insert scary thing here>", omitted from search engine results/feeds, advertisers blasted on twitter/pull out, and payment systems cancelled, with direct sharing being the only real way to propagate the videos. We've clearly seen effective censorship like this over the last few years, with other unfavorable topics (right or wrong). I don't see how it's possible to consider the internet as some free place where unfavorable ideas can be exchanged, at a public/viral level.