No, it's not well established, it is controversial. And easy to see why, the contradiction in terms must be unpalatable for all but the most devoted reductionists.
Kin selection is much better established which is what you are referring to below but I'd be happy to discuss that with you as well.
You think a killdeer that puts her life in danger to draw predators away from her chicks does so because she was raised Catholic?
Certainly not but when the killdeer jumps in the ice to save another killdeers chicks, you can get back to me because then I will suspect the killdeer did have some training by Catholic parents.
Do we rely on your authority as an animal behaviorist, here, or do you have some actual evidence?
Cleaner fish engage in reciprocal altruism. So do vampire bats, chimpanzees, etc. These are all well-established examples that don't involve kin. All you have against are your own peculiar prejudices