We do not need our bodies once we leave this world regardless of what you think happens after we die. We should be focused on curing diseases and extending the life of living humans. Science would go so far if we used human bodies after death instead of requiring people to give consent to something they don’t need.
This doesnt clear the anti discrimination bare minimum standard for a rule given its okay if a religion says no donation and people apply that to themselves the same way it’s okay if a person says that for themselves.
a religioun says no pork, is subsidising food (which includes pork) racist?