Anyone know what this means/refers to? Seen in Riverside

I know the S’s/lightning bolts are stylized a little differently than the traditional SS bolt but it can’t possibly be anything other than white supremacy right? Nobody else in their right mind would have something so similar if they weren’t a neo-Nazi/white supremacist right? It looks like it says “support Westside” so I’m just curious if anyone is familiar with what that means. Obviously doesn’t really matter, I’ll probably never see them again and will flee in the opposite direction if I do but I just can’t believe the blatant racism if it is what it looks like and the unbelievable ignorance if it isn’t that.