> Handing your codebase to an AI company is not nothing.

it's a battle that's already lost a long time ago. Every crappy little service by now indexes everything. If you ever touch Github, Jira, Datadog, Glean (god forbid), Upwork, etc etc they each have their own shitty little "AI" thing which means what? Your project has been indexed, bagged and tagged. So unless you code from a cave without using any saas tools, you will be indexed no matter what.