As much as I want to agree with you, the people who like TikTok make up a significant amount of the population, and their opinions do matter--arguably more than yours, due to sheer numbers.
Smugly dismissing them doesn't do you any favors except for making you feel good about yourself for a few seconds.
You’d be surprised how many people don’t give a shit about TikTok. It’s just another blip in history like Facebook, Instagram, Vine, MySpace and others before them.