I for one have been a wallflower many, many times and I can safely say that for me personally there is absolutely no correlation between my shyness and any of the other attributes you or the parent commenter allude to.
That's not to say that there isn't some truth to those sentiments, but I'm much more interested in evidence or at least a stronger theory behind the alleged correlations. As written, the original comment at face value is nothing more than one person's opinion based on, who knows what?
I've been a wallflower too and definitely don't think it automatically puts you into the more dangerous direction.
Rather, I think it sets up the potential to be susceptible to them. TRP, for example, does a great job of channeling the (understandable) anxiety and frustration of unloved young men into negativity and hate.
To be blamed for being a wallflower is implicitly white. Consider the alternative, if there's only one minority at the party and they're not mixing that can only be because everyone else at the party is an -ist who need to check their privilege.
The other political groups being implicitly white is a mere correlation (not causality) in the same vein as Hitler drank water, Trump drinks water, therefore we have proven Trump is Hitler.
