That's like asking "if there are still racists in the US, what's the point of the constitution - after all it clearly states all men are equal!".

Yes, there are still facists in Poland - does that mean the law was pointless? Of course not.

And of course I don't think I have to point out that you can be a fascist and not deny holocaust, so this law wouldn't do anything in that case.

I didn't ask if there are fascists in Poland, because that is not a problem in and of itself. The problem is that proto-fascists are in power in Poland. And they are actively denying the involvement of many Polish nationals in Anti-Semitic pogroms that were a part of the Holocaust.

But ignoring that, you appear to be saying that it's significantly worse to deny the Holocaust, than to be a fascist, seeing how the law doesn't apply to fascists who "moved on with the times"?

No, that's not what I am saying.