Ok so what makes a man in your opinion?
I do see your point, however i have to reiteriate that we are products of our time. The reason men used to be able to build things, fight etc is that they had to. It was their way of life, a way to survive. There are different life skills needed today to survive. Fighting bears, as you put it, aint one of them.
Man will revert back to their needs and skills as and when it is needed. E.g War. If their is a need to fight and defend your country, you learn and use the skills needed to do so.
The essence of man is exactly the same as it always has been, We just live in a modern age
As for being courteous to woman etc, I am not sure that man a couple of hundred years ago were any more charming than today.