What do you think one can do, to educate those young ones, And drive the point that with all honestly, Bitcoin isn't as bad as they think it is?
Have a dialogue with them. There aren't lots of things to do. Essentially what you're asking is: how can I make a conversation with a biased person? Apparently,
by doing it. Explain them the FUDs, counter-argue to energy waste, criminal activity, mining pool oligopoly, ponzi scheme narrative etc.
End the FUD.
Start an interesting conversation that will correct all their wrong information about bitcoin. Trace the history and share them its proven and trusted journey throughout the years. If they are smart enough, they can easily accept the truth about bitcoin and change their corrupt minds. However, expect that not all of them will believe on you, and its not your problem anymore, leave those minds that refuse to accept the reality about bitcoin.