You sure about that?
That link is a study about millenials, so obviously not really that "young" any more. It does demonstrate a fairly obvious trend, though. And you'd have to be living under a rock not to be aware of the whole alt-right thing and the insidious appeal it has to kids these days. Use to be that conservatives were the fusty, constantly complaining stick in the muds; writing letters to the BBC telling other people what they should and shouldn't do or say. Now the roles have reversed and it must be tempting to rebel against this new orthodoxy of the left.
FWIW, I think the reality is that young people are being more polarised - to the right and to the left. A natural response when the status quo sees them jobless and struggling to pay the rent. Whatever, stuff like insisting that universities stop using the word "freshman" (and the dozens of other examples of unnecessary over-sensitivity in this thread) certainly doesn't make the left seem like a very rational and appealing bunch for any youngster making their first steps into finding their own political identity.