It is good all these ideas are out there even if you don't agree with them. Shrouding them will only encourage it.
Strict absolutist and authoritative law/parenting almost always leads to acting out, while passive law/parenting let's knowledge decide individual choice.
Putting a stranglehold on knowledge that is bad will give people more desire to find confirmation biases in it. Let them naturally learn it is bad themselves.
This is just the Streisand effect and way too similar to what they do in China, like the censoring of Kim Jong Un fat memes[1]. Twitter just got political and that is not wise in business.
[1] http://www.npr.org/sections/thetwo-way/2016/11/16/502312268/...