Good point there. Bluetooth works well for me but it sucks that you don't get to use your option anymore.

I guess it has to do with jack plugs being really old (were talking over 50 years here) ND whilst that shouldn't matter, manufacturers want to appear new and improving even though there is little to improve on that plug....

I've been using the same (comparatively) cheap Sony WIC100 in-ear Bluetooth headset every day for several (over four?) years now. It's lasted longer than basically any of the cheap wired earbuds I kept replacing before ever did, and still has all-day battery life too. I haven't been particularly careful with it; Generally, I've just crumpled it up and stuffed it in my pocket with my keys, and probably semi-regularly snagged and yanked it on stuff pretty hard. Losing it is not really a concern; It's all one flexible piece, and it's basically the same profile or even slightly bulkier and heavier than wired earbuds when coiled up (but still more convenient when worn, because it doesn't run the length of the torso). Plus they can just dangle safely from my neck when I need to hear stuff around me, which neither wired headphones nor "true wireless" headphones can do.

I agree with all your points in principle, and I still pay attention to the headphone jack when evaluating phones. But the corporations that make our consumer electronics have decided this is the trend they're going with. Ultimately, you can either adapt, stop using the technology, or make your own with Raspi and SLA or whatever.