I'm not sure one utterly crap song by Clapton means anything other than Clapton wrote (at least) one utterly crap song unless you are determined to find sexism everywhere.
Clapton is redeemed by the lovely and gender (or sex if you prefer) non specific Please Be With Me
God Only Knows is also non specific as is David Gates' lovely Everything I Own
(which actually is relationship non-specific)
Me and Bobby McGee has been covered by loads of people- Bobbie was intended to be a woman in the original.
It's taken less than 30 seconds to come up with these examples- I'm sure there are gazillions more.