Both things can be true.

It is good and important to expose kids (and adults!) to a range of ideas, but it is more than fair to have concerns about proper ways including timing, methods and balance to do this. It raises very fair questions about what really we should expect about the role of a school. Examples are often laughed off as minimal outliers, but they can be on extremely powerful subjects and have a major effect on the thinking of young and very impressionable children. And imo, head-scratching examples are far too common today -- while at the same time kids are (I believe) apprecibly worse in core areas such as basic writing, reading comprehension and communication skills than prior generations.

Putting aside gender discussion examples, just this week I was looking at PSAT prep with my 9th grader and the very first example of reading comprehension was an essay she had to read taking a clear shot at all "big institutions" (corporations and governments) and attributing most societal ills in those directions and championing the "new world" of social media as individual empowerment. The essay did not even attempt to present a balanced argument. And the same child is off today to an upper level Spanish class where they are working on creating posters to display in Spanish to "battle climate change". I am not anti talking about climate change. But I happen to have a passion about global trade for example and believing its greatest power is as a rising tide helping all boats and a powerful force lifting people out of poverty. But there likely isn't a high school classroom in the country interested in "promoting activism" on this issue right now.

These are fair issues about which to be concerned and in the minds of many with kids in school today.