[felipeerias]

Holocaust denial is a form of Nazi apologism. It keeps resurfacing because there are still many neo-fascist groups trying to bring their message to the mainstream. Lifting the ban would only help them reach a wider audience.

(Do you really need an explanation as to why Nazism is incompatible with democracy?)

[tomp]

Evolution denial is a form of Church apologism. It keeps resurfacing because there are still many religious groups trying to bring their message to the mainstream. Lifting the ban would only help them reach a wider audience.

(Do you really need an explanation as to why theocracy is incompatible with democracy?)

[Latty]

Then we fight it by continually showing them to be wrong. We can't ban Nazism without opening the flood gates - any government that comes into power can claim that whatever their rival party supports is 'incompatible with democracy'.