Here is the true message of this special since both the left and the right are too stupid to understand:
Pandering is a lazy form of storytelling, but sending hate to Disney doesn't solve anything. If anything, it gives them a reason to do more pandering. Cartman is DEFINETLY NOT the voice of reason of this special. Stan and Kyle are. Their cordial speech on why pandering doesn't work is Trey and Matt's voice being heard. Stuff like Miles Morales is a great way of representation because it is innovative and a complete new spin on a classic character. Race swapping is just lazy.
I hate how the left wing only focus on the part where Cartman says "complaining about woke stuff is kinda lame" at the end, and use it as the basis of what they think the message of the special is, as if it is in favour of their side only. Disliking pandering isn't a right wing viewpoint, and I hate how people think it is. They missed the point.
I also hate how the right wing think that Cartman IS the voice of reason, thinking that the whole episode supports the their side only and that sending hate to Disney is the right way to go about it. It is annoying to see conservatives act like the whole episode is for them. They have also missed the point.
I think the most subtle part of the episode that flew over many people's heads is how Kyle and Stan openly rejected Panderverse Cartman at first ('That is not Eric Cartman!') but because Panderverse Cartman acted exactly the same Kyle quickly fell into his usual routine of arguing with Cartman like normal, with Stan literally proclaiming 'It really is Cartman' when his scheme to play Baldur's Gate III became clear.
The point being that even if a character's appearance is changed or updated, if they actually are written the same it doesn't change that much at all.