Ella has no concept of being a girls girl, siding with the person being aggressive and agro at another woman could not be further from it.
Jj talks about looks ALOT, I think he thinks that's all people are. So naturally he'd rather a fake woman that looks like a sex doll than a real girl who looks like a normal person. It's all about looks so he's not bothered that Ella was a man.
Erica has clearly experienced other women not liking her before, it happens to me too. But it's not down to jealously or looks. Women like Tasha are fake, they arse lick, are fake nice and stroke egos of other women - they expect the same in return and think that's being a girls girl. When they meet someone more straight talking who doesn't do all the fake up each others arse thing they don't like it.