Why will it stop him from fighting again? Probably 99.5% of the country have never even heard of him, let alone are outraged by his views.
David Icke has written that both Tony Blair and the Queen have engaged in child sacrifice and are actually lizards, and his career is booming.
I don't see why appearing a protest rally and posting things on his facebook will affect him getting fights at all.
Losing to Sam Webb on the other hand.........
Bookmarks