Ok, he outright supports the AfD in Germany. A party that has literal known Nazis in it. And no this isn't debatable, its outright facts.

He is ultra far right wing and he did the salute as a 'joke', but even if you want to ignore that, his support of AfD is 1000X worse.

He also associated and support far-right wing skinheads in Britain and moved from the far-right reform to the even further far ultra right 'Restore' party in Britain.

I don't know how anybody can justify unless they themselves are a far right extremist.