Christian Laettner irritated everyone in the college basketball world, including, at times, some or possibly most of his teammates.
You can certainly understand this from, say, UNC’s perspective. The Duke-Carolina rivalry is white hot at all times. Toss in a Laettner and it’s just going to get that much more intense. It’s not an accident or coincidence that one of only two teams to beat Duke in 1991-92 was UNC: they’d had just about enough of Laettner and Duke (the other was Wake Forest).
And you can understand why he drove the entire state of Kentucky insane.