  At least you agree that the term is non-standard. However, you still say it is very common. If you do a comparison of the phrases 1-Latino women, 2-Latina women and 3-Latin woman, you will find that Latin and Latina women will be used far more and will find that the term Latino women is very uncommon. Of course you might find some that will attempt to standardize an uncommon term (even wrongly used term)even if will offend others. But then again aren't we supposed to be operating in good faith in Wikipedia?  