Syrian Christians or Shia Muslims or Yazidis are refugees
That is incorrect and shows that you know NOTHING about the situation in Syria other than what you hear and repeat from Islamophobic media.
The vast majority of the victims of the conflict in Syria are in fact "Sunni" Syrians, and the vast majority of them were killed by the actions of the regime of Bashar Al Asad, in particular indiscriminate bombing of residential areas with crude large explosives known as "barrel bombs" and rockets, and summary executions by regime forces. I know this because I and several of my family members cooperate with NGOs that support the victims of the conflict in Syria.
There are victims of other groups of Syrian people of course, but the ratio of "Sunni" killed or displaced vs. others killed or displaced is about 9:1 while the ratio in terms of total numbers is 3:2. That means in case you can't do math that a "Sunni" is 6 times more likely to be displaced or killed today in Syria in comparison to any other Syrian. My numbers are from NGOs working on the ground in Syria, and not from any kind of media. And before you wrongly accuse me of being biased, please know that I am not a Muslim, and I, in terms of birth religion, come from a small religious minority that has been persecuted by Muslims in particular for over 1000 years.
Please check your facts before you talk about this. Hundreds of thousands have died and they deserve the respect of knowing what you are talking about if you feel inclined to talk on their behalf.
Another thing that you clearly know nothing about is the 1948 war. That was the establish of the State of Israel. Also, not all Poles that lived or continue to live in Syria are Jewish. While it is true that most Syrian jews have left Syria (less than 1000 remain).