Without commenting on Google[1], I think this sort of thing is true in the short term but less true in the long term. I expect that, were Chrome to ban ad blockers, technical folks will start to teach non-technical folks in their orbit how to e.g. install Firefox to regain ad-blocking capability. I think it would take some number of years but there would be a pushback in the medium- to long-term.

1. Googler, opinion solely my own.