It’s the easiest thing in the world to armchair-quarterback the events of the past. The real challenge is to understand why so many people felt that it was a necessary, though I’m sure as abhorrent to them as it is to you, thing to do.
The truth is that you can’t say what you would have done, because you weren’t there. You can guess, and of course your guess will have all the smug self-righteous moral overtones of someone who has never held life and death in his hands and had to decide.
To be fair (cough), your argument that ‘5 people means the pie should be divided into 5 equal parts’ assumes several things...
1) Each person, by virtue of merely being there, is entitled to pie.
2) Each person, by virtue of merely being there, is entitled to the same amount of pie as every other person.
While this division of the pie may be preferable for the health of the collective psyche, it is still a completely arbitrary (cough) way to divide the pie. There are several other meaningful, rational, logical ways to divide the pie. (I believe I suggested one in a previous post.) Choosing to divide the pie into 5 equal parts simply asserts the premise ‘existence = equal right’ as the dominate principle by which to guide the division of the pie.
You have to remove all other considerations (including hunger, health, and any existing social relationships such as parent-child) in order to allow the ‘existence = equal right’ principle to be an acceptable way to divide the pie. This doesn’t make that principle the ‘bedrock’ of morality. Quite the contrary. It says that this principle only dominates when all other factors are ignored.