Your reaction is mine too, but it feels like you're fighting for the sake of fighting.
Yes, it's infuriating that they effectively made an iMac, don't let you run your own software on it, but do charge iMac prices for it.
Also, if you're a consumer who wants a retina-class desktop display, do you have any better option? So far as I can tell, the 27" 4Ks we bought for my office ~9 years ago are still state-of-the-art if you're unwilling to consider Apple's option.
People are taking exception to your "idiot product" remark, because you're standing so high on your principles that you're calling people who are willing to make a financial sacrifice to get the best available option "idiots." If you spend hours a day in front of a screen, you can justify amortizing out stupid-expensive over the amount of time you spend using it.
We'd all like to see either just-the-screen for half the price, or a revived iMac Pro at the current price; but neither of those are options anyone can buy right now.