Wow, I am sorry I clicked on that link.
Both those sides are disgusting.
It really does not make a sane person hesitate, not for one instant, who the "good guys," are.

In WWII, the US should have never been in the European theater, we should have let the USSR and Nazi Germany destroy each other, and stayed the hell out of it, just like now, both these sides are immoral and evil.
If all sides are bad, there is no good. If you have no moral high ground, there is no, "good guys."
en.wikipedia.org
If one side wants to rape your women and children, and the other side wants to oppress any ethnic minority or religion that is not them? They are both evil. That is all there is to this.
They are both barbarian tribes that need to be called out, opposed, and shunned from civil society.