FWIW, someone else posted that link yesterday in response to your mention of it. I just riffed on it. And I wasn't trying to advance Torah-keeping, just found the spiritual aspect of this interested; could spiritual forces, good or ill, be why so few poly marriages seem to succeed? IDK
Hmm, didn't see that. Still playing catch up, rather badly.
Wasn't aiming the Torah disclaimer at you but at the author of that site. All good.
Once we get past that, then I would agree with you that spiritual forces are real and in our culture mostly aligned against plural marriage, but I would still discourage putting the focus there, or specifically putting the blame there. We know we wrestle not with flesh and blood, and there's a bigger picture involved. But we have the Holy Spirit on our side and the witness of the scriptures and a remnant of real believers, so we have or should have everything we need.
I say this from time to time: Really understanding the depth of the matriarchal structure of our culture, which includes the corporate churches, makes changing over to real† patriarchy in western culture look more like a Muslim surrendering to Christ than a Baptist switching over to a Presbyterian church or even a Protestant converting to Catholicism.
It changes everything. A lot of people don't get that, and can't make the transition.
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† You don't have to be a polygamist to be a patriarch, but it helps. A lot of churches and individual church-goers think they understand 'patriarchy', but then they can't get their heads around plural marriage, so what does that tell you?...