His conclusion is that 'liberals/libertarians' take fundamental issue with the principle of equality in society and rely on some very dodgy science to confirm their own sense of genetic superiority.
How did greedy fuckery ever gain the status of 'ideology'? But it certainly is accepted as such.
However, I have never made the argument that equality is a natural truth. Equality is an idea to embrace, to MAKE a truth, because it allows for the organisation of more ethical social systems.