> Are there more people whose work on a project has been taken away by AI bots?

Of course, what worked me and what allows me to keep my sanity in my case of project owner coming in and remodeling half of the codebase over the weekend with CC is that I mentally ceded "ownership" of the project code, that is, I'm no longer feeling that I'm responsible for what is there and how it is structured. And there are tests.

Apart from that I can say that I empathize with you because I know that initially it feels awful, like loosing some part of agency and also to some degree humiliating when looking that something carefully and meticulously designed is restructured, replaced or thrown away so quickly and carelessly. What also helps is changing mental model and perceiving oneself as controller who overviews process of "shaping" code as whole, in its big mass, to behave in certain way instead of keeping mentally attached to some part of it because "I designed it".