I wouldn't take them too seriously, there's strong indication that they're just trolling for the lols and aren't interested in an actually substantive discussion.

The far-right is never just joking or doing things for the lols. It is a thin shield to prevent being called out.

https://www.npr.org/2021/04/26/990274685/how-extremists-weap...

I'm not convinced this person is far-right, but even so there are smarter ways of repudiating them, that's all I'm saying.