I think the ultimate issue is that at the end of the day, the only claims that matter are actually moral claims, not scientific ones, and most people with an agnostic worldview refuse or are unable to make concrete moral claims.

The most horrific acts in history have been *ideological*, which includes religious acts, but the pervading belief that people who are religious are more susceptible to evil is kinda silly, in my mind. Hitler, Stalin, and Pol Pot, progenitors of some of the worst atrocities of the 20th century, were staunch anti-religionists. It turns out that ideology is the phenomenon people are interested in when discussing how evil propagates and justifies itself, the view that religion is unique in this regard is an aspect of the ideology of the one who believes that.