"How can so many wars be centered around religion?"
They use religion because it works. Just like our country is using fear. There is always the boogy man lerking under the bed. So we need to be protected. They are telling us we are safer than before 911 but not really safe. huh???
Religion works because it make people think what they are doing it just. But none of it is really about religion. It all about power and greed.
I agree what you said about maturity. I would call it spiritual maturity. I thought we as a group of beings were supposed to be advancing. It sure doesn't look like it to me. Hopefully something will correct the direction we are headed. Maybe mother nature will step in and say "O.K. that's it!"