Let's Encrypt is just the carrot (and to be clear, Google is not just a top sponsor, but two of Let's Encrypt's other top sponsors are organizations themselves sponsored by Google). Let's Encrypt is not Google but absolutely is downstream from that money flow.
Meanwhile Google itself is the stick. Google has used it's policy control over Chrome to effectively mandate using Let's Encrypt, by making using certificates without it a nightmare, and making browser features arbitrarily require HTTPS for no reason other than it pushes more people to do it.
I am not wholly against HTTPS, mind you, I think there's reasonable benefit gains for privacy on balance, but we should definitely be clear that Google and it's subsidiaries and sponsored orgs are responsible for the spread, and the reasons for doing so are not goodwill.
DoH, QUIC, and ECH are where it really begins to go "too far", where we're obliterating norms to ensure nobody can tamper with ad delivery. Things like buying gTLDs and putting them in the HSTS preload list, to roll back to why them selling their registrar business is so unusual.