hatter Hey, I think you're a bit delusional, mate 🙂
They've announced "Pay with Google" in May on Google I/O and I don't see anything wrong with that, logical name after "Log in with Google"
Whatever happens I don't think they would retaliate through ranking algorithm, it's not that easy and they don't do that for Apple and Microsoft, who are you?!
Anyway, don't give up, you're building a great thing!