So, you want to deny genocides and deportation of Armenians by Muslims while Shah Abbas left 20% Armenians there?
It is like questioning why India has left Kashmir to be Muslim majority still and why it does not kick out or kill all Kashmiris to make it a pure Hindu area again.
Go and read history how 20% Armenians were necessary for economy of that area and the Muslim colonial powers wanted to make money.
en.wikipedia.org
Shah Abbas I of Persia who ruled between 1588 and 1629, ordered the deportation of hundreds of thousands of Armenians including citizens from Yerevan to mainland Persia. As a consequence, Yerevan significantly lost its Armenian population who had declined to 20%, while Muslims including Persians, Turks, Kurds and Tatars gained dominance with around 80% of the city's population. Muslims were either sedentary, semi-sedentary, or nomadic. Armenians mainly occupied the Kond neighbourhood of Yerevan and the rural suburbs around the city. However, the Armenians dominated over various professions and trade in the area and were of great economic significance to the Persian administration.[55]
You have to bring your proof that Russians or Armenians did any genocide of Muslims in that area during that period.
Russia brought the original displaced people of Armenia back to those areas, which brought Armenian population to become a majority.
en.wikipedia.org
The Russians sponsored the resettlement process of the Armenian population from Persia and Turkey. Due to the resettlement, the percentage of the Armenian population of Yerevan increased from 28% to 53.8%.
The population of Yerevan under Muslim rule was tiny (only about 29000). Muslims displaced the original population, but were themselves unable to populate that area on a big scale.
And then in 1917, after the Turkish genocide in Western Armenia, again thousands of Armenian fled to Yerevan.
en.wikipedia.org
At the time, Yerevan received more than 75,000 refugees from Western Armenia, who escaped the massacres perpetrated by the Ottoman Turks during the Armenian genocide.
No wonder that few thousand Muslim population disappeared during that period, while they were only the rulers and didn't have much skills to survive. In short, there is no historical record present of any genocide of that tiny Muslim population.
We don't want you assumptions, but proofs.
Yes, Armenians didn't accept Islam on mass level, and that 80% happened due to the genocides and deportation of local Armenians, as has been recorded in the history books and I provided you with the links. You just have to read them, in order to come out of your fantasy conjectures.