We would need much better evidence than this to sell it.
People on the stream at the time remember that there was [at least] 3 different assholes making Whitey alts.
Original white nationalists was an asshole doing a troll character, not a racist.
Many of the Whitey alts were obvious straw-man trolls there to support the far left by pretending to support the far right. [Classic antifa shtick from the usual suspects.]
We'd need way stronger evidence to convince anyone of this theory...