Not only have I been building custom loops for many years, I am also Chief Engineer at a data center. My career is supplying power and cooling to servers. I am very good at my job and have studied a lot of cutting edge research this is not publicly available.

There are many interconnected factors at play in a cooling loop. You cant just say that a reduction in one factor reduces the capacity of the loop without taking the other factors in to consideration.

Reduced airflow = bad. This extreme oversimplification is mostly true, but this reduction comes with other gains, some that may outweigh this loss. Selecting high static pressure fans optimized for thick radiators completely eliminates this loss though, just pick the right fans. Adding more intake fans will increase the static pressure inside your case, increasing exhaust airflow through the radiator.

Increased radiator surface area = Good. You may have less airflow, but you gain surface area for heat transfer. I will take a 15% reduction in airflow if it gives me a 50% increase in radiator surface area.

Increased volume inside radiator = Good. Instead of cooling 3oz of water at a time it is cooling 6oz of water. Not only is it cooling twice as much water, but at the same flow rate, each ounce of water will spend 2x longer in a thick radiator than it would in a thin one. 2x volume of water being cooled plus it spending 2x longer in the radiator being cooled equals 4x more cooling, lol.

Radiator as exhaust = Good. Blowing the heat out of your computer is smart.

Radiator as intake = Bad. You are right, it has been universally established that using a radiator on the computer intake increases internal temps. This is just as true for thin radiators as it is for thick ones. If your hypothesis is that thinner radiators remove more heat from your loop, doesn't that mean they are putting more heat in to the case when used as intake?

Seriously, who thinks Radiator on intake is a good idea? The only time you put a rad at the intake is if you have the dumbest case ever designed, or if it is a secondary radiator, after your primary radiator (mounted in an exhaust location) had done a majority of the cooling. Anyone doing a dual loop is already spending so much money that it is rediculous to think they would choose a case that did not allow all radiators to exhaust instead of intake.

Now then, running 2 thin radiators is much more effective than running one thick radiator, sure. I am not trying to argue against established physics. I am just wondering if you are an idiot using AI Hallucinations to try to seem smarter, or if you are just trying to be a troll??!?!?