Do you require a definition of the alt-right? It's a fairly commonly misused label these days.
FYP.
Alt-Right was a term that is often attributed to Richard Spencer who is a self described white nationalist which means that in the truest sense, alt-right refers to those aligned with white nationalist and European identitarian movements.
In popular use, it's merely used as a smear tactic by dumbshit leftists and their low information followers.
The fact that you agreed that Sam Harris is a gateway to the alt-right puts you in the latter category. Sam Harris is anything BUT a white nationalist and has repeatedly denounced them. The SPLC is no longer a credible source of information.
And where did I say that these guys are aligned or aligning themselves with Far Right Fundamentalists? If you can't point that out can you please restate your question, as I'm not going to answer such a blatant misrepresentation.
That's not actually a misrepresentation at all. White nationalists fall well within the umbrella of far right fundamentalists.