(1) HDR display (e.g. you bought a macbook/iphone) doesn’t mean you want random videos in the instagram feed to be full brightness despite setting your screen brightness to minimum in a dark room and (2) reducing white point just darkens stuff across the display, it doesn’t disable the thing people are complaining about.
So to me the user has an off switch and the content creator also gets to express their creative freedom to use the feature or not.
If you don’t want to see HDR content you can do something else with your day. Nobody is holding us hostage to use our phones in a dark room or scroll Instagram.
This would be like buying a color TV and getting upset that the commercials don’t remain in black and white, and saying you didn’t consent to that.
But unlike in the color TV analogy we have two methods of disabling (low power mode and reduce white point setting) and we don’t just have 3 TV channels to choose from.
I will definitely concede that the browser and OS should have more controls around this feature.