Women in tech certainly aren't a problem! Feminism isn't a problem. Pointing out problems isn't a problem. Affirmative action isn't a problem. Even being angry isn't a problem.

Another poster made a useful comparison to QA. One imagines an otherwise mild-mannered QA Engineer becoming righteously angry about a very scummy feature, or a software defect which threatens lives. But this QA Engineer has better and worse ways to channel that anger into buy-in for a fix. The anger in itself may be useful by leading to useful things, but it may also be harmful if it leads to harmful things. Anyone can understand this if they want to.

Okay, I'll compare "You are hurting your cause by being angry" and "[stirring] up heated conflicts and [throwing] Tumblr-style tantrums."

The former is perfectly fine in many situations, and I don't see many people saying that being angry is inherently counterproductive or bad. The latter is widely accepted to be immature and counterproductive.