When someone lies to you enough times (or, if you prefer, speaks with total disregard of the truth enough times), you stop listening. It's not worth your time to sort out the truth from the not-truth. Worse, it's unhealthy to listen to lies in volume. (Think in bayesian terms: If you update your priors at all, then if the lies come in great enough volume, they will eventually become accepted as truth.)
I care some. I care about where the country is going. I'm concerned. But I can't care about every post and every back-and-forth and every he-said-she-said. There's too much.
AI... I can't be bothered to care about anything written by an AI, for the exact same reasons.