For one thing, miners can choose which transactions to include in the transaction block. This means they have the power to censor transactions. The claim that

For one thing, miners can choose which transactions to include in the transaction block. This means they have the power to censor transactions. The claim that a blockchain is uncensorable is untrue. Under certain assumptions, it's unlikely that transactions will be censored, but there's no guarantee that that will be the case (as would be if this process was handled by a set of predetermined rules, e.g. computer code).