I don't really know christian history but all I know is that big christian denominations support jewish things like faggotry and immigration so they must work with the jews
Well The big three family of denominations are catholics, orthodox and protestants.
Protestants don't have a hierarchical authority, so you'll find the most polar opposites in this sect of christianity, from the most progressives to the most conservatives. However, most of them are mostly in the center, where they don't profess heresies like marriage for homosexuals.
Catholics are ruled by der Pope, and der Pope is the spiritual leader of the Church therefore, whichever direction der Pope swings, the catholic Church swings too.
Orthodox have bishops and Patriarchs, which (for an outsider like you it won't make a difference) more or less acts like a mini Pipe without the infaillibility, especially the current Patriarch of Constantinople.
Catholics and Orthodox reject homosexual marriage.
Most protestants do.
However, since there's always been BIPOC people in the Church, some of the earliest saints being BLACK, the idea is that faith overcomes boundaries and a french christian should see a congolese christian more closely than a non christian french.
However, on mass immigration, there is no official stance in any of these three denominations.
The Catholic Church only has a Pope that's currently very liberal, as he is a latino KANG from argentina. Therefore, his view on immigration is considered extreme, even by most people within the catholic Church.
His teachings on immigrations are not binding, but he makes the catholic Churvj swing that way heavily