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I was unaware of that, and that Lincoln didn’t listen to his cabinet.

The cabinet opposed resupply at first. When they voted again almost two weeks later, some changed their mind and a narrow majority supported Lincoln.

Some people on the Internet have major axes to grind and you can't always trust what they say.

[DiogenesLamp]

The cabinet opposed resupply at first. When they voted again almost two weeks later, some changed their mind and a narrow majority supported Lincoln.

They didn't change their mind about it causing a war. They changed their mind about whether it would be in best interests of the Washington DC Government to start a war or not.

Their boss wanted a war. So what did you expect them to say once he made his feelings plain and they served at his pleasure.

They still thought it was going to cause a war. None of them thought 8 armed ships would deliver "supplies" without triggering that war.

Major Anderson himself said it would cause a war, and he certainly indicated that he believed the Union started it.