Why aren't we removing the drains of society, the retarded and elderly? Why are people so pathetic?

i have no sympathy for an individual of our species anymore than any other species. i say survival of the fittest, let the jobless starve, let the cripples fight their own battles, and let the mentally retarded and elderly stop draining our resources. i have no pity for them. i don't believe in god or an afterlife or human divinity and i think the incompotence of our species should die off. i think we need to outlaw christianity as well and judaism and islam as well, and anyone who believes in god be put in a psyche ward or on death row.