It's so easy to make one, does it make sense? But think about it, Bitcoin and Litecoin are the same thing.

More alt coins means more investment pouring into bitcoin in the end so i think they are a great thing.

But currently this investment is going in few hands not for all most of peoples losing money in dumb coins

Actually, I'm quite sure that the vast majority of the altcoins are held by whales who were Bitcoin early adopters.