What is the motivation behind offending someone or some people who have a certain belief you disagree with?

@Carlisle it is a general question. Some people disagree with one another and rather than sort out the disagreement rstionally and respectfully, some people try to offend the other person

@Babylon if one person is disagreeing. Then agree to disagree.
If there are billions of people disagreeing and protesting. Maybe need to evolve a little.