Nobody from the McMaster camp is disputing any of the facts here. Their silence speaks volumes.
Who knows if these people were any good at their jobs, for instance? In a meritocracy people get fired for being incompetent regardless of their political views. Sometimes they blame ideology for the reason they got canned just like some others blame race or other things.
I don’t know the facts, because like everyone else I’m just a person on an anonymous message board. But I tend to apply critical thinking and look for logical fallacies more than some.