RandomX was introduced to reduce reliance on specialized hardware (manufactured almost solely by China) not because Monero devs... hate mining competitors? If they wanted to get more Monero than the miners wouldn't you think they could have just introduced a dev tax or a premine in the code?
As for your main question: no. And that does not make XMR hot potato money any more than bitcoin would be if Core were to decide to lift the 21M cap and programmed the code to issue more BTC. As we've seen with BIP110, what the community at large decides to run is what becomes the legitimate project.
