Personally I nearly always take the time to scroll through and untick all the permissions, or find a different site because screw them, that's why. I realise I'm in the minority.
This should make it a lot easier :) It auto-handles most gdpr permission walls, and yes, you can set it to reject all - that's what I do!
(I'm sure this exists for Chrome, too, but if you care about this sort of thing you really should be using Firefox!)