Recognize that they’re probably driven by some kind of narcissism and that responding to them in any way gives them narcissistic supply.

If you agree with them, you pad their ego. If you disagree with them, then they can feed themselves by “humbling” you.

The best way to engage is to disengage because you don’t actually fill any of your needs by engaging with them so just move on with your life, if possible. Don’t feed them and recognize your power in the situation is that you are in control of the attention supply, which is what they crave so turn that tap off and deny them what they want.

Being denied attention will hurt them more than anything because that’s how a narcissistic ego feeds and becomes validated.

My advice would be not to worry about it. I don't know how old you are but that "I'm smarter than you so that makes me better than you." attitude gets unpopular quickly outside of high school and college. No one likes a smug asshole who has to be right all the time. And they won't be right all the time anyway, no one is a genius expert in everything, they might know math or physics or medicine or whatever, but that doesn't mean shit in fields they know nothing about. I would recommend not wasting time with them if possible. If you have to work with them or something, try to keep it in a professional context, when they rant about how much Rick and Morty they watch or whatever, just tell them you need to focus on the job at hand. Make it clear that you don't want to hear them brag about how much smarter they are than everyone else, in a very detached and professional way.

Call them "bazinga boys" and "redditors"...