What hate crime were you thinking of?
What crime at all?
No, it is not a crime.
It would be capable of being defamatory. Clearly it is a defamatory statement.
The question is whether or not the action is accessible. A defamation action costs in excess of £10k if it is contested and there is no legal aid.
You could get a solicitor to write to him for about £100 warning him of the laws of defamation.
Can I clarify anything for you?
Are you in the UK and is he?
That does make things much harder.
You would have to sue cross border.
I think I viewed that above? Yes, it is defamatory.