So, according to Musk, a woman that has had a medically necessary hysterectomy is no longer woman? What is she, then, Elon?

No. Musk and other transphobes don't actually believe what they believe because of the reasons they state. They believe what they believe, and say whatever feels right in the moment to support their hate, and don't care in the slightest if it contradicts another of their beliefs somewhere else. The hate is the point. The words are just window dressing.

They believe what they believe, and say whatever feels right in the moment to support their hate, and don’t care in the slightest if it contradicts another of their beliefs somewhere else.

It sure makes them look like absolute idiots, though. It also discredits their arguments when their claims fail under the smallest bit of critical thinking. Musk's idiotic and ignorant statements like this shine like a giant beacon of how brain dead his mindset is. Anyone that might have been swayed, when examining his argument, can see how stupid he is with this statement, and carry that over to seeing the stupidity in his hate.