If you view 'decentralization' as a bucket of technologies underpinned by cryptographic primitives and blockchains, it doesn't.

This is similar to other technologies like cash, paper, and computers* which also don't, as technological phenomena, implicitly include censorship as a feature.

*it looks like consumer computing is moving away from general 'free' computing to ASICs from folks like Apple which likely will include built-in censorship features moving forward.