At the end of the day we know that these tools are massively subsidised and they do not reflect the real cost of usage. It is a fair-use model at best and the goal is to capture as market share as possible.
I am a no defender of Google and I've been burned many times by Google as well but I kind of get it?
That being said, you don't really need to use your gemini subscription in openclaw. You can use gemini directly the way it was intended and rip the benefits of the subsidised plan.
I developed an open source tool called Pantalk which sits as a background daemon and exposes many of the communication channels you want as a standard CLI which gemini can use directly. All you need is just some SKILL.md files to describe where things are at and you are good to go. You have openclaw without openclaw and still within TOS.
The project is hosted at: https://github.com/pantalk/pantalk