I look at life black and white. I don't care if you're gay, straight, bi, or anything else under the sun.
If a business discriminates against anyone, I will refuse to give them my money. I will refuse to give them my money. I am a person who doesn't care what you are, but who you are. If you're a kind person, I won't look at your sexuality, gender (natural or otherwise), race, religion, political party, nationality etc. If you are mean to others, I don't want anything to do with you. I'm certainly not blameless, and I don't try to act sanctimonious. I get irrationally angry at people, but I do try to hold myself to a standard.
That said, this is me personally. I choose not to support people who actively discriminate. That's it.