Such oppression had not happened. The federal government was tiny in 1860. It had almost NO military arm not fighting the Indians. It had been run by Southerners for most of our existence. It had NO intention to oppress the slavers.
There are few arguments as absurd as that claiming actions of the federal government justified rebellion.
Luther Martin would not have supported the RAT Rebellion. Perhaps you should quote Luther Martin’s opinion of Jefferson, the poster boy of the secessionists.
As to Martin, neither his largely irrational dislike of all things Jefferson nor Jefferson's own personal shortcomings on which it was instigated is sufficient to disprove the general disdain that both men had for the federal government's encroachment upon the states. Politics makes strange bedfellows.