Not all religionists fit into this category. Some adhere to Truth in spirituality and not dogma and Ego -- but too few.
1) God is Love without self-concern. If they realized this, they would behave differently.
2) Too many take the Bible literally and miss the spirit of it. They don't realize that the first books of the Bible were written by Kabbalists in code, so no one without the code knows what they're talking about.
Make a list of 10 things? Anything else I can think of is merely a rehashing of the first two.
Self-concern (I'm right; you're wrong. Me versus you; separation) is the heart of all evil and suffering. This is the opposite of God (Love).
When I have by experiment achieved perfect humility, love, responsibility and confidence (Faith), the physical universe became as tissue paper -- flimsy nothingness and easily manipulated. Without Love (and a pure lack of self-concern), we are only physical cogs in the machine of reality. When we achieve perfect Love, then we rise above the machine and have full control over it.
Without self-concern, we have no limitations. With Pure Love, we find Wisdom and do all that is good in the world.
Too many mistake Ego as their guiding "light." They think they know truth and use it as a badge to bolster Ego.
If we love others as ourselves, even our enemies, and wish for them everything that they desire, then we heal the world. I have done this, but only briefly and found bliss only a moment after long minutes of rage. I quieted Ego to nothing and loved my enemies completely. The forgiveness was so complete, I forgot their trespasses for 34 years. And when I remembered, it was without any self-concern -- only love.