My gut feeling is that Google won't pull this stunt with chrome, this is some kind of scare mongering or a PR tactic, I dunno.
It doesn't make a logical sense because if they are banning the ad-blockers, it means they accept that chrome is largely used by power users who can install these blockers (otherwise, what's the need?). But they should realize that a power user who installs an addon can just as easily move to another browser like firefox/brave. And the PR repercussions will ensure that a lot of newbies will leave too (because they usually follow the power users on youtube) which will essentially kill the advertising income that they wanted in the first place?