tl;dr: Marry a 3rd cousin for 25% more grandchildren. Restore the clan to save the West from leftist atomization.

3rd-cousin marriage results in 21% more children and 25% more grandchildren, regardless of who the children marry. That is a huge effect, almost certainly caused by better genetic health, not just a stronger social network.

Obviously 1st-2nd cousin marriage causes inbreeding depression. However, 3rd-4th is the sweet spot. 200 years of Icelandic breeding accidentally proved this point. It is the key to recovering from the social externalities inflicted by the industrial revolution. Communism is just a misguided attempt to restore the support network that the clan used to provide.

https://pubmed.ncbi.nlm.nih.gov/18258915/

I propose that the most effective altruism one can practice is towards one's own clan, extending to 3rd and 4th cousins. This is where one's social transaction costs are lowest, thanks to mutual trust and transparency.

To those feeling outraged: On r/23andMe this same idea was upvoted without controversy. Ask yourself whether you have the knowledge necessary to make an informed judgment.

https://www.reddit.com/r/23andme/comments/jsei1o/date_your_3rd_cousin_in_order_to_have_as_many/

Previously the right bred primarily via religion. The postmodern left has developed effective counters to this strategy, as 2,000-year-old Christianity fades into obsolescence, overwhelmed by scientific advancement.

Now high-IQ rightists have adopted a breeding strategy that relies not on myth but objective genetics. Nothing can stop them from inheriting the Earth. Unlike Christianity, kin-breeding is inherently resistant to immivasion.

Why We Must Marry Our Third Cousins To Save Civilization | The Jolly Heretic

https://www.youtube.com/watch?v=EJQ9fjm61YY

This video by illustrious evolutionary psychologist Edward Dutton, published in Jan 2021, yielded 31k views without controversy.

If you still think it's incest despite geneticists agreeing otherwise, you are cool and normal. Did you know that all humans are 16th cousins? That's 16x the cousin cooties. Remain celibate to save the environment. Tinder, video games, porn and abortion are cool and normal. Look, a celebrity!