I can understand your feeling, I have a difficult time with some myself however it is important to keep it separated. I am pretty sure if we knew the views and politics of many of the musicians in bands we listen to then we all would do some clearing out of our collections. The thing is we don't know most of the time and would probably be surprised a lot if we ever found out. And as much as I would disagree with a lot of the musicians who use the platform to voice opinions be them incredibly fucked up or just being ass-tads like Dave Mustaine or whoever, at least they have the balls to do it be it right or wrong, distasteful or not.Also to it does happen to be America so they can say what they like no matter how asinine it is.
This album is not putting money into his pocket. nor was he asked to do it based on his politics or whatever stupid things he may or may not say. I'm sure the band are able to keep their enjoyment and respect for Ross' playing seperate from his politics, one would think the listener could as well.