Yes, stop letting kids stare at screens all day. Yes, you are a bad/lazy parent letting the firehose of the Internet pipe into their heads.
I used to blame the shitty influencers and internet at large for the selfish greedy brats, but it's their parents. I've met too many exceptions where the difference was just "We limit their screen time." Maybe they end up shitty in some other way, I dunno, but at least they're going to be more functional than my nephews who my SIL is constantly trying to figure our how they get sucked into racism and greed and what to do about it. Stop letting them get all their views from greedy racists online would be a start - can't do that, she'd "never have a moments peace." Idiot human.
Side note, if you let your kids play roblox unsupervised, you're fucking up hard.
The other argument is that this makes kids socially isolated from their peers, because they all have and use these devices. If that truly is the case there definitely still is a way to monitor your kids device and internet consumption without giving them free-reign. There are internet safety settings for parents on every device out there. Kids are perfectly capable of communicating with each other through a variety of mediums, they don't need tiktok (or whatever app is the trendy one of the decade).
The last argument, when you present the former argument, is that kids are clever and will find a way to get around controls. Yea, no shit, that's what kids do. Your role as a parent is to monitor that and teach/correct them.