Its only as inclusive as the market demands. If someone is poor enough at decision making that will hold non-sense beliefs like hating a group of people because of what they do with their genitals in privacy away from the office, then chances are they didn't have much to contribute to tech.
If someone holds well reasoned and logical beliefs for hating the gay-hater that person can at least suss out some amount of logic.
I am not saying that all homophic are stupid or that all haters of the homophobic are smart, but one of these uses evidence and logic and that correlates at loosely with intelligence.
Brenden Eich felt compelled to step down as Mozilla CEO because he supported a ban on Gay marriage and parts of the tech community criticized him for it (including OkCupid which ran a special banner for Firefox users).
If that means Tech is not inclusive--then you're right.