Lincoln's New York Masters were not going to let that money go without a fight."
But Lincoln had no "New York Masters" of the type you fantasize.
Lincoln's people in New York were the same kinds of people who today support New Yorker Donald Trump: farmers, small towns, small business, skilled workers, freedom & independence minded individuals, suburban, professionals, etc.
Then as now, "New York Masters" (=big city rich people) were all Democrats, allies of the Southern Slave-Power, who supported Southern demands and even secession.
Those Democrats only turned against their erstwhile political Southern friends when secessionists renounced their debts and obligations.
Even then, none called for war and only temporarily supported Republican goals.
Once war ended they quickly re-allied with their previous Southern friends and began electing Democrat majorities and presidents, from Grover Cleveland in 1885 through Franklin Roosevelt and even John Kennedy in 1960.
"There is a reason why the first thing Lincoln did was to throw up a commercial blockade.
It had everything to do with money, and nothing to do with military advantage."
Nonsense.
The first thing Lincoln did was attempt to resupply Union troops in Union Fort Sumter, which Davis saw as "assailing" Confederate "integrity" and so started Civil War there.
Note: as late as 1960, without the Democrat secessionist Deep South, John Kennedy would have lost the election by 62 electoral votes:
