The censorability of rollup relayers bothers me too. As you mentioned, the fact that US persons are blocked from the protocol shows this is a real problem.
I think this is a problem with technological solutions (perhaps anonymous and redundant relayers, or private rollup transactions so that the relayer does not know the content of transactions in a block but can produce a valid output state) that will be worked on in the next couple years now that the base technology (rollups) exists.
I think this is a problem with technological solutions (perhaps anonymous and redundant relayers, or private rollup transactions so that the relayer does not know the content of transactions in a block but can produce a valid output state) that will be worked on in the next couple years now that the base technology (rollups) exists.