Is Mama making Riggs gay?

It is bad enough Mama dresses Riggs up in ridiculous outfits during the holidays but now she has him watching showtunes!  I came walking upstairs and there laying on the bed was Riggs and Mama watching Hello Dolly.  Riggs was completely mesmerized by the TV.  I don’t know if he was just really into paying attention to the TV today or if it was the singing that caught his attention.