Assertion Without Proof. There are few things more ludicrious than when someone denies a proven point by merely making a denial assertion. I know it would require you to actually think, but can you possibly stretch yourself enough to think about this statement? If you do you will see how wrong it is, if you cannot, it proves you cannot think, do not know the purpose of definitions, or simply are so brainwashed that logic is impossible for you. In any case, this is the second time you've presented me with an irrational post. If you can't put together a rational statement, don't post to me.
Self interest can and must include maintenance of the community in which one lives, just as housecleaning, though work, improves our level of comfort.
So what? This statement says nothing.
Second, self interest is subjective, and many people enjoy being altruistic. Christianity seeks to foster this in people in whom this motive is latent.
Most people are brainwashed into thinking they MUST be altruistic, have it crammed into their heads from their earliest moments (you must share johnnie! Bad johnnie, mustn't be selfish) which goes against the natural feeling of every human being. It must be literally pounded into them. There is no 'latent' natural altruism. Altruism is a method of psychological control. All the rest is after the fact justification.
And you lecture me about unproven assumptions.