Google is putting ads in gmail. WTF?

It is insiane to me that Google shows these ads to google one subscribers.

I already pay google hundreds of dollars a year, and have done so for years. then over the last 2 yesr they slowly started rolling out intrusive ads into my mobile Gmail app.

It was the final straw for me. I've started slowing migrating my email off Gmail, but my goodness is that ever a slow and painful process.