Religious repugnancy

Throughout society there are people with strongly-held views who will argue cogently for many of their stances, but the fact is that this can only amount to advice, not compulsion. The choice to accept or reject that advice rests solely with each individual, not at the whim of external mob pressures.

The charge of blasphemy is a method of intellectual suppression of the free, thoughtful, and conclusive enquiry and determinations of individuals or allied groups. “Give a dog a bad name and hang him” is an English proverb meaning that if a person's reputation has been besmirched, then he will suffer difficulty and hardship. That’s exactly what blasphemy allegations seek to do. To create strong adverse branding in marketing terms.

This is a powerful reason to reject it as well as repudiating those notions of awe and divinity which dominate some religions.

It would be blasphemous not to.