Correct. Robinson is a far right neo nazi Groyper. Maybe more importantly he is a gun nut raised in a conservative gun obsessed family.
Amazing how conservatives never accept that a shooter is one of them when the evidence is clear.
This short clip explains the Groyper subculture which uses the language of irony, shit posting and mockery to attempt to conceal what they really mean. Everything they say is cloaked in irony and is sort of a shibboleth which lets other Groypers know that the person saying those things is in the same group.