There is no fixed definition of hate speech. It's based on du jure norms, which are in a constant state of flux. No person can define or even accurately predict

There is no fixed definition of hate speech. It's based on du jure norms, which are in a constant state of flux. No person can define or even accurately predict what will constitute hate speech in the future. Therefore, once you accept the principle that certain speech can be made criminal, you are agreeing to accept as permanent whatever future shifts may occur. It is inconceivable that this will not be abused in the future by nefarious political actors.