The fact is people wear makeup in spite of your stated facts, and have been for thousands of years. Makeup is just one part of how humans express identity, and for me it's on the same level as shaving, doing my hair, putting on a nice smelling perfume, wearing a nice suit with a tie and a pocket square I carefully coordinated. You call it deceitful, I call it enhancing.

It's pretty much ingrained in any culture, and it's not going away anytime soon. Makeup is here to stay, and definitely not ripe for 'destruction'.