All transactions do not need to be censorship-proof in a world where censorship-proof transactions exist. The possibility of censorship-proof transactions by itself will cut down on censorship because it will be seen as futile.
Bravo! That is an excellent corollary to davout's maxim:
The true value that Bitcoin brings to the table is not "everyone gets to write into the holy ledger", it is instead "everyone gets to benefit from sane and non-inflationary financial instutions whose sanity and honesty are ensured by the holy blockchain".