Not necessarily, but it can be.
However, it should be noted that some things about the world are simply just true, and we have overwhelming evidence to show that this is so.
The Earth is not flat, a biscuit and a mouthful of fermented grape juice does not turn into actual flesh and blood because a priest speaks some words over it, homoeopathy isn't medicine and evolution really happened.
People who believe otherwise are just plainly and simply wrong, and whether it is because of indoctrination, ignorance or whatever their 'rationale' might be, is actually not that relevant.
Limiting the influence of obviously mind-numbingly false ideas is, in my view, worth a few bruised egos.
We're not talking about censorship here, and no-one is impeding on anyone's freedom of speech.
We're talking, at its worst, about making fun of ridiculous ideas and the people who promote them.
I'm not saying that this is the path I would choose, but sometimes there is no debate to be had, and in some cases the people promoting certain ideas are either dishonest or wilfully ignorant, in which case I see no reason to grant neither them, nor their ideas, much respect.