Yes, it’s the use of gender in place of gender roles that’s the source of the problem. Most people use sex/gender interchangeably, so I’m not sure why second wave/radical feminists thought they could use the word to mean something else and not confuse people. It’s easy to see how the constant refrain of “abolish gender” and “gender is a social construct” by feminists got taken to mean “abolish sex” and “sex is a social construct” when the two words literally mean the same thing to most people. I’m not sure why the term gender was created and insisted upon when gender roles suffices. It’s very strange how the ardent radical feminists on this site don’t seem to understand how the use of the word gender the way they use it is problematic.