Well, one of the reasons I am such an avid Republican is that I was trained by Marxists in college, so no one needs to explain "Dialectical Materialism" to me, I had it rammed down my throat by my commissars, oops! . . . ahem! . . . professors. But even the quote you offered equates supporters of abiogenesis with atheists, which still seems to indicate an agenda on Yockey's part.
IOW, a person who is not ideologically committed to atheism can take a scientific look at the subject. Elsewhere, he says that he is anti-Creationism. So the converse is true to him as well.
IOW, if a person in ideologically committed to the notion that the cosmos, the earth and everything in it was created 6,006 years ago from our space/time coordinates - then they cannot take a scientific look at the subject either.