This is basically the problem. Christian conservatism, which is what people like Fuentes are supposed to be pushing for in broad terms, is
relatively mainstream already, looking at how popular people like Posobiec and Tucker Carlson are now. What the "dissident right" adds to this is creepy spergs openly praising fascism and moaning about the Jews, which are
not popular positions among the general population, regardless of what 4chan will tell you. Openly brazen racism of the sort we see on places like A&N is not appealing to the average middle class conservative voter, and hasn't been since about the 1980s. Actually saying Hitler should have won the war is even less acceptable than that and would just get people beaten up in public in most places, and I'm not just talking about Portland either.
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This is a pretty good measure of how popular serious racism is among the public at large, from extremely in the Jim Crow era to not at all from the 1990s onwards. Anyone rambling about an ethnostate will turn off over 80% of the electorate and go nowhere, as we have seen again and again and again from Richard Spencer to now.
Regarding criticism of Israel, there's plenty of that from sources outside the dissident right as well. John Mearsheimer's
The Israel Lobby and U.S. Foreign Policy from 2007 covers similar ground to what dissident right figures bring up from an academic perspective. The dissident right
does have a point about neoconservatism and Israel, but that has also been noticed by people outside it as well, and covered from a more credible perspective than some cranky internet figure.