I hate the GDPR popups more than the ads because they make no fucking sense.

Why don't we have a browser flag that sends a request header telling the site our preference automatically so we can avoid these popups?

What's even worse is that I have my browser set to block cookies on ALL sites by default and only enable them for a handful of sites that I login to.

This causes all the stupid GDPR popup sites to not "remember" my preferences because they ironically need to use a cookie to store the preference of declining cookies, so they appear again each time because my browser doesn't store that decline cookie between sessions.