Thanks for your thoughtful post.
For most men and women I agree, it is (still) all a big abstract and not such a big deal. A bit more roll-your-eyesy than civil rightsy.
I was like this until JKR came out with her tweets and essay, and that was the point at which I thought - but hang on! She's one of the good ones, smart, a lefty who gives her own money away. So I started looking in to the issue.
Now, I - and most men and women - do not make my living as a political/social commentator. When I was working, I was expected to keep up with trends that affected my job performance. So why did so many of these commentators - with so many resources to call on to do their research - not 'get' GC arguments until 20-bloody-26? And why, instead, did they go full-on GI.
Early on in my personal journey (I hate that phrase, btw), I twigged that GI had all the hallmarks of a men's rights movement, then found that a lot of TERFs had come to the same conclusion.