Hopefully I don't sound like an ageist, but one thing that I seem to realize is that a lot of actual alt-righters (the white nationalists, white supremacists, and neo-Nazis) seem to be either Baby Boomers or Generation X (at least about half of this list)
Silent Generation: Virginia Abernethy - 1934 Tom Metzger - 1938 Martin Webster - 1943 Kevin MacDonald - 1944 John Derbyshire - 1945
Baby Boomers: Peter Brimelow - 1947 Arthur Jones - 1948 Richard McCullouch - 1949 David Duke - 1950 Michael Hill - 1951 Jared Taylor - 1951 David Icke - 1952 Tomislav Sunic - 1953 Don Black - 1953 Michael Hoffman - 1957 Steve Sailer - 1958 Isaac Baker - 1960? Paul Ramsey - 1963
Generation X Alex Linder - 1966 Robert Ray (Azzmador) - 1966 Seana Fenner (Odinia) - 1967? Klas Lund - 1968 Paul Nehlen - 1969 Billy Roper - 1972 John Ramondetta - 1972 Varg Vikernes - 1973 Jeff Schoep - 1973 Hendrik Mobus - 1976 Mike Enoch - 1977 Daniel Friberg - 1977? Haakon Forwald - 1978 Richard Spencer - 1978 Lana Lokteff - 1979 Ayla Stewart - 1979 Brad Griffin - 1980 Mark Collett - 1980 Christopher Cantwell - 1980 Henrik Palmgren, Andy Nowicki, and Colin Liddell all appear to be Generation X, even though I don't know or can estimate their date of birth.
Millennials: Colin Robertson - 1983 Andrew Anglin - 1984 Andrew Auernheimer - 1985 Nathan Lodge - 1986 Anthime Gionet - 1987 Dillon Hopper - 1988? Faith Goldy - 1989 Matthew Heimbach - 1991 James Allsup - 1995 Tara McCarthy and John Cameron Denton seem like Millennials, even though I do not know or can estimate their date of birth.
Gen Z: Evalion - 1997 Nick Fuentes - 1998 Thomas Rosseau - 1998 "Stell Bell" - 2001?