While I do think there are bigger societal and systemic issues, I agree with you. My first thought is that they don't have enough work to do. I've worked with gay, trans, transitioning, liberal/conservative, whatever and it's never been an issue (or even anything we thought about). We were too busy trying to make enough money to keep from going out of business.

The shared challenge with people different from yourself is a great way to remove biases. Unfortunately, there are fewer avenues for that type of challenge today, and fewer still as people retreat into their homogenous bubbles.