The problem is that things like photo storage and emails are really non negotiable. Most people need these things as a basic digital necessity. Google is well aware of it, and it knows that it can increase fees or reduce storage space in the future, and most of the folks will keep sticking around because the company holds a lifetime of emails and photos as hostages. It's just like the pusher who increases their rates for cocaïne, well aware that people who are hooked onto it will keep paying whatever.
I've spent quite some money and time to set up my own cloud, but the initial investment paid itself back after 2 years already when compared to the monthly cost of Google One. Companies like Google need to understand that, if they try to pull too much the rope of profit, even if that means hurting services that people have started to take for granted and built their lives around, then people will just start leaving.