Does nobody else see beyond the humor in this film?
Ok, yes, so this movie is very funny in over-doing all the aspects of femininity and masculinity - the whole pink/blue contrasts, men chopping wood and fixing cars, women cleaning the floor and wearing bridal dresses.
But much more than that I think this movie is about the absurdist society we live in. This movie clearly shows two people in love, but we have created institutions and beliefs like this 'rehabilitation house' (a representation of how we isolate homosexuals from our society). This movie acknowledges and criticizes our society for expecting that all women are completely subordinate and housewife-like, and that all men love cars and are big and muscular. Which should just not be.
And plus, the way that this movie stereotypes gays and lesbians (in a completely non-realistic way) mirrors our ignorant views of them. It shows that in our society, when somebody says the word lesbian or gay, they automatically think of a person like those portrayed in the film. Most people don't realize that gays and lesbians are completely normal people too, the only thing different is their sexual preference which is ultimately but a very small part of their lives.
I hope that this movie resonates on that level with all the LGBT haters (or dislikers) to show them how absurd THEY are.