It really doesn’t. A lot of the time they’re flippant not because they have no interest in discussion but because so many libs dismiss and sneer at their vilified and misunderstood political positions — I’ve seen people literally assume they’re Trump supporters or Putin supporters and go around saying so to anyone who asks — and it makes discussion frustrating or outright impossible. Conveying a lot of background information to someone who is hostile and not listening is difficult. So they’re flippant, and it becomes a vicious cycle.