When did he denounce Marx, do you have a quote?

Not off the top of my head, no, but my point is that the principles themselves were not Marxist nor Communist, thus he denounced them later rather than attempt to continue to claim Marxist influence.

Also, the same accusations of feudalism can be charged at North Korea.

In what manner? Vibes?

Or as the maoist say, Marxism with Chinese characteristics. The same charges could have been levied at aspects of the cultural revolution. Different forms of revolution are required for different forms of societal structures and limitations. The vanguard approach is not exactly going to fly in a mostly agrarian culture.

More vibes, lol. Mao was not a deinustrialist, nor was he a nationalist. Yes, different forms of revolution are required, but intentionally setting the clock on progress backwards, rather than forwards, is inherently a reactionary position, which became self admitted!

Lol, that's not up to you to interpret. You are conflating nearly 50 years of history to a single decade. I could make very similar arguments about the Soviet Union based on just the 80's as well.

I am not. I am aware that Pol Pot distanced himself from Marxism publicly afterwards, but he was never operating under Marxist principles. At most, he took inspiration from the Chinese revolution with regards to the agrarian focus, but instead focused on deindustrialization and nationalism.

I think it's pretty obvious that we're just trying to distance communism from a regime no one can morally defend. Nearly all the arguments you made have been levied at China, Korea, Russia, or Cuba at some point, but we tend to defend them because the ends mostly justify the means.

More vibes.