They weren’t just Armenian. They were Christians.
First peoples to establish Christianity as their national religion, 302 AD
Yes, the victims of the genocide carried out by the Turks in the 1910s were not just Armenian Christians, but also Greek and Assyrian Christians. https://pjmedia.com/blog/the-armenian-genocide/ However, the lion’s share (probably over 75%) of the victims were Armenian. President Trump should say that a genocide took place against Armenians and other Christians in the region.