People have been saying this since the 60s. Lots of young people are still conservative and many areas are still solidly red. I don't see a massive blue wave that garners a supermajority happening anytime soon.
Actually, it looks like this time it might be true.
Next is speculation on my part, but I imagine people are turning conservative more based on their wealth than their age. We saw a correlation between age and conservative sentiment because people tended to gather wealth as they got older.
But that link has been progressively eroded, so people are no longer switching. Essentially the conservatives are killing the golden goose in their incessant pursuit of consolidating wealth.
