Earlier quoted context omitted.
The problem is that many people who are hurt easily by cynical and sarcastic behavior(which is very different than being as asshole) typically take themselves very seriously and it's a sign that they are very self focused and place their own concerns way above those of the team. I wonder if there is a language barrier but cynical and sarcastic is very very different from putting people down.
You can be critical without sounding cynical and sarcastic. When you say something sarcastically, you're implying that you consider yourself better than that person. Do you think it's healthy to speak to a child in a cynical way? It shouldn't be any different when relating to an adult.
Absolutely not. I don't think I would look to fill my team with people who wish to be spoken to as children.