This is what people said about Alex Jones and his network. When he was deplatformed there was a surge of downloads for his app from white supremacists trying to show support and people gave your exact argument that now he has been legitimized.
But what actually happened were those numbers were inflated by his followers and without the echo chamber of the larger base he had on YouTube his numbers eventually plummeted. Instead of being a regular in the news he occupies a small corner of the internet without access to the larger impressionable ever refreshing base he once had.
He has now resorted to trying to sneak videos back on to you tube.