Gold backed coins, like PAX, are very easy to censor. While all the coin ownership information sits on the blockchain ledger, the gold sits somewhere in a vault

Gold backed coins, like PAX, are very easy to censor. While all the coin ownership information sits on the blockchain ledger, the gold sits somewhere in a vault and the custodian company has the capability to blacklist coins. Virtually all gold backed coins have this issues. You need a native digital token to have better censorship resistance.