I have generally found Christianity the most foreign/alien system, and basically had an attitude of "don't care/not interested/not relevant."
But then I realised, you can't actually understand 'the west' without understanding Christianity; and if you can't understand 'the west' - not only its history, but also the history of its ideas - then you can't really hope to understand your engagement with Buddhism. That is, if
you are a westerner.
I know that sounds like a long bow, but I think it is true. I am happy to be pressed on that a little if anyone thinks it's a bit of loose claim - and I'll try and qualify it more.
Anyway the point was to acknowledge, like the OP, that I have had a resistance/ refusal to understanding Christianity - at the detriment of my understanding per se, and particularly, in my understanding of Buddhism.
Pursuing a more open-minded relationship may not lead to equivalences, but it can only be fruitful in other ways.
One side-effect of this kind of inquiry: I've found I have a better relationship with texts like Paradise Lost or The Divine Comedy than many of my friends who belong to specific churches and therefore have particular theological positions. I just read and appreciate because I don't have a pony in any of these races.
Back to the OP: I find it more important to find constructive and respectful ways to relate to Christians as neighbors and friends than to worry too much about Christianity as a body of doctrine or as a set of institutions.