People who argue against it do so mainly for the reason that their ego demands that they continue to hold the same position they have have held in the past...regardless...because if they didn't, then they would feel like they "lost". That they cannot bear and will not tolertate.

That is what fuels most of these endless arguments, as a matter of fact...merely people's sheer stubbornness in defending an already established position that they have made an emotional investment in. It's a matter of pride, not reason.

It's the "Vietnam" syndrome. "We can't admit we were wrong, and leave now, because it would be humiliating. It would make us look like losers. People might laugh at us! So...we're gonna stay right where we are, take more losses, and keep saying what we have always said...that we are right and our ideas are the only way to go."

"When the going gets tough, the tough get going." - Richard Nixon

(Or to put it another way: When the insecure are shown to be in error, the insecure go ever more deeply into denial.)