Pretty sure we're already here. Ignorant or evil folks won't become enlightened or good if they can't use the internet.
The right to free speech doesn't include the right to force your speech on people who don't want to listen to you.
I have no desire to listen to that speech, so I just don't visit Gab. It's not like I've ever been forced to.
Imagine that you have a piece of rotting meat. It's unsightly and it stinks. So you hide it under the carpet. Now it's gone from view, and the smell is nearly gone. But it's still rotting down there, and at one moment you'll have to face what it will turn into.