We saw the kind of deplorable tactics Putin is using in Ukraine in Syria and Chechnya, too. The American public didn’t display the same level of interest or disgust during the earlier conflicts. Why the difference?
There are several reasons. First, the magnitude of the invasion of Ukraine is much larger. Second, the Russian military had a legal right to be in Chechnya and Syria, while Ukraine is an invasion and a violation of international law, pure and simple. Third, the victims of the previous acts of aggression had far less access to the Western mass media than the Ukrainians. Finally, and I suspect most importantly, Ukraine and its residents are closer to us than the residents of Syria and Chechnya. We can now imagine Russia attacking NATO countries, and we can relate culturally to the Ukrainian population.
You can argue, and some have, that the last item is racist. I think it is just natural for us to care more about our neighbors than the people on the other side the world. I don’t think we need to apologize for it.