If one has no affection for a person or a system, one should feel free to give the fullest expression to his disaffection so long as he does not contemplate, promote, or incite violence.
If I were a dictator, religion and state would be separate. I swear by my religion. I will die for it. But it is my personal affair. The state has nothing to do with it. The state would look after your secular welfare, health, communications, foreign relations, currency and so on, but not your or my religion. That is everybody's personal concern!