The advantage with cold is that it’s possible to do something about it. You can always layer up and get better materials for your layers. I spend hours skiing outside at like -15F and am actually comfortable. In hot weather though, once you’re sprawled out naked on the ground, you’ve exhausted your means to get cooler without some kind of machine.
Maybe once or twice per decade is the AQ so bad in CA you have to stay indoors. As opposed to weeks or months every winter (depending on your tolerance - I hate cold).
We definitely had stay-inside days this year and last year, and I could have sworn we did the year before as well. That blew through your per-decade quota in recent consecutive years.
I fully expect we'll have some stay-inside days next year too.
But I do agree that the number of days the air quality is bad just does not come close to the number of days where it's really cold or really hot in other places.
The problem is environmentalists don't want to do planned/controlled burning anymore, hence, the things burn by themselves on their own schedule now, out of our control.
Take your pic. CA folks seem to think the rest of the world is an inhospitable wasteland. Sure, CA is a bit more mild, but it's not perfect.