Normally I despise anti-ad-blocker tactics as much as most folks here, but I want to give YouTube credit where credit is due: They provide a straightforward way to pay for ad-free service. I've often complained when other sites don't do that.
1. YouTube could force creators to add their own “sponsored ad” tags
2. SponsorBlock uses crowd-sourced timestamps to determine when the sponsored sections are
In both cases they could be filtered out trivially
YouTube could easily stop them by making it against the ToS and enforcing it.
I'm not watching your embedded ad noty, there's a reason why LTT shadowbans anyone who mentions it