I don't think claims of sexism in tech are unfounded. You can find sexism in any industry. I do believe that the overt political correctness does hinder others from expressing opinions that might seem "problematic".

It has gotten to a point in my workplace where it is very hard to not be politicaly correct for the sake of fun, without being "set straight" by select coworkers.

Edit: it's incredibly sad that this was flagged. We can't cover our ears to controversy, we have to be open to it and discuss it.