becuase when they didnt test products people died. how would you like to kick over from using makeup. it happened pre world war II.
then when they tested on people, people like you protested so they went to animals to test on so people wont die. now you dont want testing on animlas again. full circle I guess. so what next wait till people are dying from untested products and demand testing again.
I bet you dont remember the scandal when the Gov injected people with Nuclear material to see what its effects would be. all under the guise of Polo vaccines.
if your serious. volunteer to be one of the first human test subjects. till then either give up Medicines, cell phones, Computers, Ipads, make up and everything else that they test on animals.
if you really want to save animals from testing design and develop a computer model that will accurately predict the effects of any given substance or energy. if not that find another way thats accurate. not only will you save animals you will be rolling in billions.