I only meant bizarre, in historical context. In most societies you marry within your clan or village, in one way or another. That means that whether first-cousin marriage is preferred, shunned, or neutral, second-cousin and third-cousin marriages are pretty normal… indeed, in pre-modern societies finding someone to marry who isn't a third-cousin is pretty damn hard.
And the medieval policy, where the church had the power to enforce it fully, was even more expansive than that. They didn't even want you to marry your SIXTH cousin. Why? Because the Roman aristocracy followed the rule that third-cousins were incest, but they calculated degrees of consanguinity by counting steps in a family tree. So me > dad > grandfather > great-grandfather > great-uncle > second-cousin once-removed > third cousin is "sixth degree consanguinity". Medieval canon law kept the "sixth degree" but used our more familiar measuring system. So where they had their way, the church made Europeans unprecedently outbred.
How could this be bad? Again, remember what I said: this is a great policy IF you want highly altruistic societies. Slight inbreeding increases clannish behavior (siding with your ingroup against an outgroup) because when you are inbred, you (a) share more genes with your clan than you normally would, and (b) share more genes with your clan, relative to strangers, than you normally would. So if someone has a gene that causes him to favor members of his ingroup, and he lives in a St. Augustine-approved society where everyone in his clan is very outbred, chances are the kinsmen he is helping don't have the same gene, and he will hurt his chances of spreading the clannish gene to help his kin spread non-clannish genes. But if a clan mostly arranges second- and third-cousin marriages, then chances are good that if you have a clannishness gene, a lot of your kinsmen have it too, and you can get the gene to spread by favoring them over outsiders.
So the net result of a thousand years of warfare against the clan-organization of society is a population that functions amazingly well in every aspect EXCEPT willingness to band together against outsiders.
And that's a POSSIBLE motive, but not a necessary one. If you escaped China because you think the Chinese have made a hellish society for themselves, you don't want to import more Chinese to make a second hellish society here.
I agree with you that jews want to dilute the white majority. But why? First, because jews call the shots already, so US society is close to their ideal and the more power they have, the closer it will come. Second, because many jews don't believe in HBD, or don't believe strongly enough. Where they have experience of Arab/Paki immigration, like in Britain, suddenly kikes become MORE in favor of keeping a white majority than the whites themselves (see Brexit vote totals).
Keep in mind I'm not agreeing with the general idea that foreign races' interests aren't wholly aligned with ours. But there are different pressures pointing in different directions.
That's absolutely fine, but you need to grow up and think politically. I want white people to survive because they're me. I want white people to survive because I prefer how they look. I want white people to survive because a non-white majority won't be as kind to my kids as we whites are to non-whites. I want white people to survive because I want to see more good things like calculus, the 9th Symphony, and the rule of law.
Four reasons are stronger than one. And more importantly, not everyone sees them as equally strong. You clearly don't care too much about the quality of human civilization, and maybe you don't care about the other two reasons, either; but at least you care about your folk, so you're still on our team. There are other people who are much, much more altruistic than you and I, who don't find "OUR people" to be a very strong reason, but who are on our team for one of the other three reasons.