One such difference is general lower IQ which is not just explained by environment but is also genetic.

Notice how I never once said there aren't average IQ differences between races. However, genetics are not set in stone at the creation of man. So acting like they are is to ignore reality.

This idea that we're all created equal and our circumstances are the only thing that matters is exactly why deranged leftists think it's ok to deluge the civilized countries with third world immigrants because eventually they will assimilate and integrate.

And that's the problem, no one is capable of nuance and therefore accuracy on this issue. It's too polarized. Either you want open borders or you must ban an entire race, with no in between. I don't argue you can just allow mass immigration and expect assimilation. Just because something is technically possible does not mean it is what is probable at scale.

They are incapable of building and living in a civilized society

Is your belief. It's not scientifically valid as I already demonstrated. The existence of high achievers does disprove that mathematically and logically. Humans are capable of reproduction and discipline can be passed down. In my own life I've been to many family gathers of a hundred plus extended family and its in no way uncivilized. I've never felt unsafe or like I was in some kind of backwards place at those. The few extended family I know on my white side are actually more dysfunctional. So to argue with me that my family has genetics incapable of building and living in a civilized way will always seem absurd. You can't trump lived experience with "muh statistics" and "hey watch this racist youtube video"

the descendants of Ham (black people) were cursed to be subservient to the descendants of Shem (semites) and Japheth (whites, asians)

If this is what Orthodox are teaching, that's concerning. You're assuming a curse Noah put on Canaan is valid for all black people? That's just kind of insane. I don't see the logic there.

I'm also not convinced Canaanites were black, I'm pretty sure they were some kind of Arab. But I haven't looked into the genealogy much, since in 1 Timothy we read "Neither give heed to fables and endless genealogies, which minister questions, rather than godly edifying which is in faith".