What I find interesting here is the continued references to "right wing", by which you really mean the majority white, working class, trump voting class in the west - and to distinguish between right wing and Islamic terrorism.
Because, Islam itself is a right wing, supremacist and fascist political ideology, far more so than anything those "right wing" whites could ever dream up.
In every way - mindset towards "other" people (and especially Jews or other non believers), women, gays, or propensity towards violence and political suppression of those others.