The opportunity set outside where you are now is huge. Take advantage of the whole market, not just one company with lousy leadership.
If you're in a bad situation, the best thing to do is to leave. Your first and greatest loyalty should be to yourself, not to "the team". Your time is finite; do not waste it in situations that you cannot control. You will kid yourself that you might be able to make them see sense, or that things will improve, but that is wishful thinking.
Again, your time is finite; do not waste it in situations that you cannot control.