What "normal solutions" are actually in progress with any real potential of happening?
Fines.
Besides, your solution is in progress or "has better chance" of happening? Wake the fuck up.
Meanwhile what insane doomsday scenario do you think would happen if Google services were banned
Google runs 12% of all cloud services through google cloud. Yes, I expect a "doomsday scenario" if you just shut that down.
and people had the given period to find alternatives?
Sure, give people and companies 5-10 years to migrate and it will probably be fine in terms of chaos, though I would still be very interested to know how many billions of € would the migration cost.