Here's the thing:
We've seen a number of these genocidal speakers basically quit. Their funding is choked off, they can't really make ends meet, they have to go work at...McDonald's or whatever.
Why?
In their own words, they were deplatformed. They can't spread their message, they aren't recruiting anyone. When's the last time you heard of that Milo whatever guy? And did we lose anything of substance when he up and vanished?
So Lauren Southern and Stephan Molyneux were banned. So, in terms of real debate about anything aside from "aboriginals are low IQ, they deserved what they got." One's a white nationalist, the other a cult leader wannabe. Why give them a platform to begin with?
As an American, we try to keep government out of these issues as much as possible, but I think it's fine if everyone looks at a conference that invites, say, Steve Bannon, and just says "I'm out, unless he's out". Instead of just having friendly talks, or even supposedly hostile talks, with bigots of any sort, why not starve them out entirely?
It's not like this is just some friendly chat - the nationalists, the supremacists, are serious about their goals of eventually killing as people as possible...