So you want the government to control what can and can't be censored on a private media site?
That sounds like something your boss Putin would do
Break it up
Wrong.
We should not want any censorship or arbitrary banning at all.
What we should want instead if for our existing legal system to protect us from abuse.
If a Tweet infringes upon someone's rights, then have the courts decide, not some for profit corporate entity.
A for profit corporate entity will always choose arbitrarily based on which results in the most profit, not what is best for human rights.
Breaking up a currently popular single service, will only make uniform regulation and protection more difficult.
What they should do is make Twitter include an obvious complaint department, that is reviewed by impartial legally knowledgeable, who then advise or act, and also explain how to commence legal action if unsatisfied.
This should actually really be done more on the ISP level, but it not likely to ever happen since it need a screen presence.
ISPs do not have a screen presence and only end providers do.