One employment law claim that has been quickly becoming more popular these days is "family status discrimination". That is, discriminating against someone based on their familial obligations or simply because they have a family in the first place.
via www.calemployeerightsblog.com
I was conducting some research into 'familial status discrimination' in housing and in a Google search came across this blog comment from a couple of years ago which sets out some of the arguments in favor of applying it to employment discrimination. Some circuits have said there is no such thing under Title VII, but as this author notes, there are theories [e.g., sex role stereotyping, moral stereotyping] which would seem to permit this case to proceed even under Title VII as a form of gender discrimination.
