Perhaps in the context of your discussion these characterizations make sense but the way you describe the philosophy of Christianity is incorrect. The philosophy of Christianity as it pertains to other religions is the idea of having 'one God' as opposed to a 'pantheon' of Gods AND the idea that one should 'turn the other cheek' when facing transgression.
There are perhaps sects in Christianity that vehemently believe that all other Gods are fake but this is not a concept that is widely accepted by Christians. Not to turn your discussion to religion but essentially the concept you outlined for Christian philosophy was not a widely held belief.
@Kung Fu Wang I agree your statement of a philosophy of Christianity is incorrect.
@Yokazuna514, Well there are many religions that are loosely based on Christianity. But what would normally be accepted as main stream, would not say they believing in one God (which it does) is a philosophy so much as a tenant of faith.
Turning the other cheek was part of the Sermon on the Mount. There is debate on what is meant, is it a literal teaching or intended as an example of being willing not to be confrontational with evil or evil doers, and set a better example? But again, not a philosophy so much as a teaching of a better way to live.
And I know of no main stream, nor even many way out of the main stream religion that would accept that there are many gods that are not fake. I believe that would be anathema to Bible believing Christians.
Note that like you, I don't intend to turn this thread to a debate on Christianity, simply give my beliefs as you have given yours. Others can accept them or not, and I mean no argument with anyone else''s beliefs. We all get to make those choices of beliefs, just as some of us believe in ki and some don't. Ki isn't a religious belief, but it is one that is accepted on faith and by observed application (at least for me). I cannot prove it any more than anyone else can disprove it.