> where is your evidence that this hatred predates the Soviet era?
Really? You actually have to ask that question when talking about the relations between Christians and Muslims in this region?
- Hamidian massacres (1894)
- Armenian–Tatar massacres (1905-1907)
- Adana massacre (1909)
- Armenian genocide (1914–1923)
- September Days (1918)
- Khaibalikend massacre (1919)
- Destruction of Armenian part of Shusha (1920)
Preceding that you also have the Russian conquests in the Caucasus during the first half of the 19th century. The Circassians (amongst other groups) who survived the genocide and settled in the Ottoman probably probably weren't particularly fond of Christians either.