In that case websites will absolutely show you a banner and/or intentionally make their services more difficult to use.

Any website showing a cookie banner already prioritizes their ad revenue over your convenience of not seeing a banner. So why would they implement any extra work to spare you that banner, if you're one of those customers that won't drive ad revenue?

How can you tell "absolutely not" without going through the 37 pages of their policy, to make sure you understand exactly what you say "no" to ? Maybe there is something different about this specific website that might make you say "I usually say no, but this time, I'll say yes".

So, please read those pages - on every website - then systematically click on "Reject all". That's what the law asks you to do, and it is indeed absolutely nuts.