It makes all the sense. It even sounds as if you agree with me.
You are correct that businesses already doing business with Russia had to make a choice. Do we continue to do business in Russia or not? Congratulations. You are catching on!!!
But it doesn't apply to Disney, Chick-Fila, ect on abortions. Who are they continuing or no longer doing business with? What ties were they required to sever? Disney, Chick-Fila, ect were not involved in the abortion business so they have no reason to take public positions on those subjects. As Weezer said. It will alienate customers.
Why would they not take a stance? Because it does not involve their business practice.
Unlike your Russia example. Where it sounds like you understand, but still aren't connecting the dots on why it is a bad example for Weezer's statement.