So, if a shop doesn't explicitely say "We welcome guys in boots and metalband hoodies!" I shouldn't go there, or I should feel unwanted?
Ok, that was deliberately sarcastic.
Actually, the (admittedly overstated) example that came to mind was - let us assume you are a white heterosexual male. You are thirsty, and step into a bar to catch a drink - and you discover it is filled with African American lesbians. The bouncer may not eject you out of hand - you're technically allowed to go in, get a drink, listen to the music, and even shuffle around on the dance floor, but are you really going to feel like this is the place for you? Probably not.
I think it could act as an impediment, but it's more in the head of person who feel it and in most cases not on the part of the affiliated.
Eh. Right. Do you know the phrase, "blaming the victim"? It applies here.
"If they don't feel welcome, that's all in *their* heads! Even if I don't do much of anything to make them feel welcome."
And, you might want to consider that your position really amounts to *active resistance* to elements that would make them feel welcome. If folks suggest that adding elements to be inclusive might be a good idea, and you push back on that, then you are on the negative side of the equation, not the neutral point.
...but you are just as welcomed as the next person.
I think this assertion is false, and that the bulk of the evidence is that they historically have not been equally embraced by the community.
Shall we talk about, for example, how many years it has taken (and is still taking) for us to have proper anti-harassment policies instituted and enforced in convention gaming rooms? The very fact that we *need* to have that policy specially pointed out is an indication that we, as a collective overall community of gamers, lean a bit to the jerkish side and don't welcome all people equally. Some people have traditionally been considered second-class members of the community, and treated poorly, and still have to push to be treated with nominal respect to this day.