I think we can get a pretty good idea by comparing and contrasting the views of other nationalists who reject the concept of a white ethnostate. There’s some debate among the more mainstream/civic nationalists about how much the US should be intervening against ISIS and al Qaeda in Syria, but none that I’m aware of support regime change in that country. The fact that there’s virtual unanimity about keeping Assad in place across the board among nationalists of all stripes suggests that it’s more about nationalism than white supremacy/separatism.