Sure, I'd like something like that. I don't know if I would pay for it. I've paid for related things though; various ad/tracker blocking software and even hardware. Here is a free and custom but slightly annoying to set up (and prone to requiring maintenance) method:

Step 1: Install Stylus browser add-on (or equally privacy-respecting equivalent)

Step 2: When a site makes the vision-obstructing (cookies-warning/Google-login/donation-request) dialog, add an appropriate local CSS rule to block it (same domain if site-specific; wildcard domains if generic).

Step 3: Eventually, all sites you regularly visit to will no longer have these annoyances.

Step 4: Remember to export up the local CSS file and back it up in case it needs to be restored/reused.