This would only be true if you lumped anyone who isn't explicitly pro-white into that "suicidal liberal" category. Most whites who lack a conscious ingroup preference aren't genuinely self-hating but rather the product extreme anti-white brainwashing from literally the moment they were born (plus a lack of exposure to more mask-off anti-white hatred, due to not having had to personally live with "diversity"), and this is evidenced by the fact that this large scale lack of ingroup preference is only a recent phenomenon (70 years at most). A large portion of the population are just NPCs who adapt whatever politcal views are popular at the moment, unlike antifa tier anti-white whites who are genuinely mentally ill on a genetic level. And even if we were to assume that you're completely correct in your assertion that most Anglos are suicidal liberals who are genuinely anti-white, this could of course be fixed with eugenics.