I think a wide swath (very likely the majority) of the community is totally fine with not-open licenses. It’s the default condition for new code and I personally have zero issue with it.

I think more people are put off by perceived bait-and-switch or claims that a given piece of tech is open (with all the benefits that come from that) while making it not actually open.

If it’s a duck, call it a duck. If it’s a hunting decoy, don’t call it a duck.