I work with a lot of young players. Those hyperbolic, dystopian tweets are ridiculous. Young players like making characters and debating rules and hanging out with their friends, the same as we did. They will also do it online if they have to, and some will use VTTs to enhance their games even in person (it's a LOT cheaper than miniatures!), but this is not going to suddenly become Fortnite. Come on. How would that even work?
Kids want to hang out with friends. It's not like they will suddenly not be human teenagers anymore because a VTT is available. It's not like they will stop being creative and imaginative. Every new technology always makes us old people freak out because we assume that if it isn't the same as it was for us, it must be broken and wrong.