Where was that claim?
The US flag was used to protect slave ships from boarding and inspection. Truth.
Justshutupandwhinesomemore dishonestly creates a new fundamental to argue against which is easily defeated and proceeds from there. Don't work for me.
That was the implication of the poster, another DS, posting the claim the slave ships were "protected" by the US flag attempting to deceive one into believing it was the policy of the US government to protect slavers' ships.
Desperate to make others believe the fantasy that the Northern anti-slavers were just as bad as the southern slavers they regularly resort to such nonsense.