To be tolerated, you have to be tolerant. To be accepted, you have to accept others. To have adults listen to you, you have to act like an adult.
Somewhere in recent history, people have decided that to try and make their point they can no longer be mature and civilized, and therefore act like spoiled children.
Too many people over 18 years old are still acting like they are 2. If they are the future, who will be running the daycare?