Allowing individuals to start arbitrarily passing rules to censor some transactions is absolutely not what bitcoin was designed to be. If you want your transactions to need approval from third parties, then go and use fiat.
This is not arbitrary. Satoshi created Bitcoin to be p2p electronic cash. De-facto it's used as a speculative investment or store of value. Most of users are not interested in Bitcoin also being a network for smart contracts, tokens and other unnecessary stuff.
Bitcoin is first of all a community of users who agree on the same rules. It's time to update the rules to remove the unproductive nuisance that is driving the fees up for all users.
I don't buy the slippery slope argument, because if someone thinks that the network rules should never change, they can just run the old version and form a network with like-minded users.