I worked in 3 of big4 (Google/Microsoft/Amazon) and you need to try hard to find any harassing environment. Usually, if it's bad, it's bad for everyone, due to project/managerial conditions. All companies have trainings that teach you to prevent harrasment and give ways to report it.
Especially now, when woman can tweet picture of 2 dudes with remark on a convefence and they will have hard time, even if they're guilty in nothing.
After further thought, I think that you're just troll. At least in the places/teams where I've worked, white dudes aren't majority. Wast majority were chinese/indian folks. Also, don't expect to hear anything on non-work related stuff from interviewers - their goal is to evaluate your skills, not your sexual orientation, that doesn't matter in workplace.