Not at all. Some men prefer females who have a more natural look and find them just as beautiful as females who wear a lot of makeup. It is just that they may prefer a natural female, or plainer. Whereas some men prefer females who wear a lot of make up and are more groomed.
Men also can groom themselves and like mostly attracts like. Two people who find each other attractive may not be down to what they look like. Two females and one male, one female wears make up and is well groomed while the other is more natural and plain. Both are beautiful but it is the chemistry that will trigger an attraction between them. The male may find that he has an affinity with the female who goes for the natural look leaving the well groomed female bemused.
At the end of the day, females take their makeup off and the bare face is shown. Would he fancy her then? It's always a good idea to let a guy see you properly, warts and all.
I understand what you mean about the natural females being treated as more masculine and it is true, but not fair. These females are more likely to be better homemakers and carers than females who think of themselves and what is about them.
Men are the same though, they may not wear make up to attract a female, but they can be very well groomed and think of their own looks. These kind of men prefer women who are well groomed rather than a natural look.