Excellent point. I do think it is important to propose a definition of anti-sematism which focuses exclusively on unjustified hatred. Misguided and erroneous hatred of the Jewish "race" -- including attendant foolishness about the magically pernicious nature of genetically Jewish people or their genes in the gene-pool. This is the theoretical mistake underlying the Holocaust.

Oddly, many Jews themselves are convince they are in fact a race in need of protection from racism, and that this is supported by genetic research. I think that this too is false, as the only valid characteristics of "race" in the context of "racism" are those which render the target group unchangeable physically conspicuous. People with Jewish ancestry, at least in the UK, can pass as non-Jewish people simply by dressing like non-Jewish people.

Thus, the only reason anyone could identify them as Jewish would be due to some voluntary act on their part -- for which they can reasonably be expected to deal with the non-criminal consequences (crimes against anyone should be punished, of course).

I suppose that people who hate or criticize Jews for nonsense reasons are anti-semites, while those who advance valid criticisms based on principles which could apply to any group, are not. I don't see my proposed defintion moving forward easily in the current environment.