Going for Look/Discrimination Response

In today's world it would make sense that corporations hire only based on their 'look' but in affect raise arguments of discrimination. I believe that companies have the right to not hire anyone they don't see fit for the job, that maybe exclusively hiring to the company's 'look'. It just makes sense to me that a business would do that, for example Hooter's only hire women, unless you want to be a cook or janitor, but you don't see any lawsuits coming their way. That might be an extreme example but even in Napa Taqurita Rosita only hires women waitresses but we've come to accept that because its 'normal'. The one thing I don't agree with is the way the branch managers would not even look at an application unless they were white, tall, blonde, muscular, handsome etc. That part is obvious discrimination especially if they're more qualified than then the people already working there. Never make decisions based on race, its bound to turn out bad or not in anyone's favor. I also think that our society needs to not be so senitive to this kind of thing because if you  are a morbidly obese person trying to work at Banana Republic you will not get the job, sorry.