Can someone define 'alt-right' ?
Didn't think so. The same way no one could really define the term 'neocon'. The Democratic strategists simply whipped it up out of thin air.
Do you mean such "strategists" as Richard B. Spencer---the white supremacist who takes credit for coining the term by way of his
having created and edited the Website AlternativeRight.com from 2010-2012? Or Paul Gottfried, who spoke of the "alternative right" when
addressing the H.L. Mencken Club in 2008? Or
Breitbart's Allum Bokhari and Milo Yiannapoulous, who published an essay on the alt-right
that was taken to be a kind of manifesto in which they traced the alt-right to the Old Right and the paleoconservatives who emerged in the
1990s? (Spencer, by the way, was once an assistant editor at
The American Conservative, a magazine not exactly unfriendly to the
actual or alleged alt-right, until he was canned because his opinions were considered a little too extreme even for them.)
It may be fair to attribute the alt-right tag to that combination, who certainly a) didn't think they were pulling it out of thin air, and b)
aren't exactly known to be Democrats. But you certainly can't
blame the Democrats for pouncing on the phrase and the concept
as yet another catch-all for
all on the right, since they
will pounce on it and use it as a club thus . . .