Maybe it wouldn't be as big but I can assure you nothing gives a conspiracy theory more credence among it's followers than being deplatformed.
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.