The predominant opinion of people with a lot of experience with practising Buddhism seems to be that there are irreconcilable gaps between Buddhism and Christianity and that it makes no sense to be a Buddhist and a Christian at the same time. On the other hand, they don't seem to have a problem with mixing Buddhism with Hinduism, Bön, Shinto, Taoism, Confucianism and Chinese folk religion.
Are there objective differences between these all these religions on the one hand and Christianity on the other that make Christianity much more irreconcilable with Buddhism?
EDIT: It seems that many answerers didn't understand my question. Let me say it again. I'm not asking: "Is it possible to reconcile Buddhism with Christianity?". This is what I am asking:
Are there objective differences between Hinduism, Bön, Shinto, Taoism, Confucianism and Chinese folk religion on the one hand and Christianity on the other that make Christianity much more irreconcilable with Buddhism?