What his removal on these platforms does is limit his reach. He’s completely allowed to, in the confines of the law, to say whatever he wants. That doesn’t also mean he is owed a loudspeaker to blast his asinine message to the entire world. This is about limiting the reach of a deranged individual. If you don’t believe this works - look at what happened to Milo after he was banned from Twitter. The near weekly Milo articles simply dropped off the face of the earth. And it’s likely Alex Jones’ limited reach will prevent from amassing new followers who choose to harass the parents of the “false flag” sandy hook shooting. That, to me, is more than reason enough to ban him.
There’s a huge line between the confusing, but relatively safe flat earth conspiracy theorists and the the one that actively riling up people to harass parents grieving over children.