> Even the greatest minds, such as Einstein, transitioned from disruptor to gatekeeper when quantum mechanics threatened his nostalgic view of the universe

Just watch Veritasium[1] take on this claim. Eistein claimed that QM in Copenhagen interpretation is non-local. Bohr claimed he proved Einstein wrong. And then came Bell and ruled out local hidden variables, proving the QM is non-local, at least in Copenhagen interpretation. Pity neither Einstein nor Bohr lived to that moment, so we can't know what they would say on that.

But in any case Einstein was right all the time.

[1] https://youtu.be/NIk_0AW5hFU