Precisely. And that is why I don't think the GLBT folks have a good reason for PA protections. In the 1960s, and frankly right through the 70s, a biz in the South would get more overall biz by not serving blacks. Wal-Mart ended that, but Wal-Mart really rose in the 80s and 90s. And, even today, don't think for a minute that folks don't go a little farther to shop at grocery store with fewer blacks, and that's just not in the South. Racism is systemic in our society.
But, I don't think GLBT folks have it that bad, in general. In some small rural communities, there may be only a few sources for a good or service, and they may well face real discrimination in terms of just not getting something. But, overall, I don't think they lack access to cakes.