True but while it's the reason for many conflicts, wars and deaths, it's doing what it supposed to do. Giving some people hope and making their life better.
The only problems of religions are:
-The fact that there are different religions which results in conflicts and therefore suffering
-The fact that religions can behave as cults and exploit people and their money.
If there would be only one religion, which does not want money or power from anyone, then a religion would be the best thing that could happen to us.