>>513598460 (OP)we went for it and almost captured it, and all of the catholic + protestant great powers of Europe threatened an invasion if we did as little as touch Constantinople
the Crimea war was also fought to specifically block Russia from seizing it
it's not a comparison of "orthodox nations not recapturing their holy site from the muslims", which even Balkan nations could've easily done, it's more of the equivalent to Russia funding the nafri horde and helping it capture Rome and then threatening you with nukes should you even think of moving your army to its borders