Aretha Franklin didn't try to make you like her because she was fat, she was a singer. She wasn't on tumblr trying to promote obesity, she wasn't advocating against fatphobia. She recorded songs that were generally well received. There's nothing wrong with liking those songs. You better think. ;)  Also, if you liked Franklin's songs, you may also like Barbara Lynn - at least you'll feel less guilty. She isn't fat, and likely in large part (heh) because of that, she's still around and reminding the world that if you lose her, you'll lose a good thing.