restrooms for everyones use

as an american and a human i find corporations who post restrooms for customers use only not only a form of racism but a danger to the environment as well. to often in big cities especially, the hardest part of ones day is figuring out where to use the bathroom and not losing your dignity. once a customer always a customer unless your homeless. its one thing to be denied services like food or a bus pick up because of racial stereo types but to be denied the basic restroom service is cruel and unusual punishment. subway in eugene oregon will deny you the restroom if you buy a six inch sub...they say your not a customer unless you buy a five dollar footlong. n that is just one example..the govt is responsible for our situation so take responsiblity n bann no public restroom signs.