You know Elon Musk has been criticizing Bitcoin for PoW for quite a while already, right? There is no way in hell he's just going to wake up one day and tell everyone he is starting his own mining farm, contributing to climate change. Elon Musk has no interest in venturing into something like this which goes against the ethos of this companies.
Besides, mining is quite a niche industry. Not something that stakeholders are elated about.