Please keep in mind that I was responding to the comment about how those people must have felt. There is a lot of what we call evil in the world, and if you want to lump all of them together, good on you.
Yep ... I merely amplified the point.
There is a lot of what we call evil in the world,
A fact not likely to change. Ever. And we call it evil because that's what it is.
if you want to lump all of them together
It's a matter of recognising that various forms of evil differ in degree, not in kind.