Re: On the other hand
I wonder what Alphabet's yearly net income is, divided by the number of their users? A quick DDG tells me $34B
Note that net income is what they make after paying for salaries, electricity, data centres, tax, etc. Their total revenue (what they make for selling ads and a bit of cloud computing, before paying for all the stuff above) is $160B, and that's what you would need to replace with a yearly payment.
That said, no matter how much Google uses their power to keep users in, they can only be successful if they have a good product (and they had plenty of failed products like Google+, no matter how hard they tried to push it). It's much better to keep that incentive to keep the product good.