That's partly true but I like to know what that group is thinking. As bad as it is, I don't detect any energy towards violent overthrow of the US Govt as was expressed by Timothy McVeigh in Oklahoma City. Maybe elsewhere, but not on 4chan/pol/
There are a lot of people on 4chan from non-European countries. I've seen vile anti-semitism expressed by someone with a Saudi flag. It's not uncommon.