I don't see Bitcoin being influenced by external parties here. Well, not too much. We should be adapting, and trying to fit within the world for our own benefit though, and while I guess there was influence on this happening, its probably for the better.
Elon Musk withdrawing his support for Bitcoin after he supposedly found out that Bitcoin isn't clean is in a sense an external influence. Problem here is that he
shouldn't be unaware of the environmental impacts of mining in the first place. Being critical of Bitcoin after he openly invested a billion dollars is questionable, either he is outright ignorant or has a certain agenda.
Like he doesn't know all the facts from the beginning. Bitcoin mining activity is well known and many articles compared its consumption to countries (like Argentina...)
Businessmen knows everything, studied markets dozens of times, calculated risks and benefits over and over. So yeah, he has his agenda.
Personally, I find moving green(er) is a good thing for the planet and for everyone. Just to mention that crypto are greener than the banking/actual financial system.