Sounds like a bad advisor. One question though, did you get a sense of this from current students before accepting the offer? I’m not suggesting the situation

Sounds like a bad advisor. One question though, did you get a sense of this from current students before accepting the offer? I’m not suggesting the situation is your fault for not knowing. But part of my advice to potential grad students is to talk to several current students of the advisor you’re considering. Reasonable advisors will not be offended by this, and if done in an informal off-the-record way (e.g. in person), I think most grad students will be honest about a bad advisor. Or at least impart some feeling for how their experience has been. For example, I personally know of cases where current students explicitly warned against working with an advisor during the admitted phd student visit day. Not trying to argue that you should have avoided the situation, but I am curious about cases where the talk-to-current-students advice breaks down.