Muscular or thick and juicy are but two types of figures that some women have. I support what Luke has been saying. Many here make the mistake of judging female bodybuilders by their face when that is not part of the judging process. The same goes for the men. Ugly men can win, too.
What bothers a lot of guys is seeing those extremely defined female bodybuilders. Well, that is how they have to look on stage. You guys insist that the men be conditioned. So, those standards apply to the women, too.
This is part personal preference and part aesthetics. That you don't approve of these women or fancy them doesn't mean there should not be bodybuilding contests for them.
Bodybuilders seem to have a very narrow view of what is attractive in women. Too fat, too thin, or too muscular is not acceptable. Well, that just shows what bodybuilders think and doesn't mean everyone should agree. There are lots of bodytypes that are attractive to some people. Why bodybuilders cannot be tolerant of others is something that really makes them seem like a sad lot. There they are blasting away with weights and ending up judgemental and intolerant for their trouble.