Every person holding a cellphone up in their hands could also be pointing a camera around at people, a camera with much higher fidelity, computing power, and one that can take much longer videos.
This is just panic about a new form factor. The same thing happened when cell phones came along, with the exact same talking points.
The same talking points still apply to cell phones. I think people who record TikToks in public are similarly gross and I go out of my way to avoid them.
I watched a guy setup a cell phone to record his laps in a pool yesterday. He swam one lap right about a meter from the 15 year-old girl playing with her mom, then climbed out of the pool, shut off his phone, and walked away. The remainder of the pool was open. Should I have called him out? I couldn't decide, and therefore didn't. This is normal now.