Some people find solace, love, and peace in religion, a purpose for living, a means for practicing compassion, etc., in religion.
Other people are, simply put, very angry and spiteful people. They use religion as a way to lash out at others, and as a way to release some of the anger and frustration they have stored up within them for decades.
Edward seems to be in the second group.
It's important to not confuse the two groups of people, which is exactly what IG is saying.
IG, I would not say that people in the second group are a good justification for taking an agnostic view of religion, although it is something to think about.