As a gay man, I'm not especially concerned about the hammer factory being unwelcoming, but I'd still rather work for the one that has a non-discrimination policy and where I see employees are open about their sexuality.
I very much don't want to work in any professional setting where people are "open about their sexuality", hetero, gay or otherwise.
Do I mention going on a trip with my husband, or my spouse? That's what I mean about being open about my sexuality. Most people don't give that sort of thing a second thought.