The technology itself is not sinful, and the guilty ones are those who use it.
So I don't think there is a direct link between the bad guys and the bad guys on the blockchain ledger, which doesn't mean that bitcoin is bad.
The problem is that governments don't care, and if you are running a full node, they could make an argument claiming that you are holding these illegal files yourself by default if you are holding the blockchain.
If they want to screw up bitcoin's network they could come up with crazy laws like that, so people running full validating nodes should be aware of that possibility.. they could incriminate everyone hosting nodes. It's unfair but wouldn't surprise me if it eventually happens.