To this article and all agreeing:
Become Protestant. Really, it's that simple. Luther and Calvin already pushed forward ideas on church teaching that you'd like 500 years ago, and to this day there are plenty of Protestant and non-denominational sects that support more progressive ideas such as same-sex unions, contraceptives, female clergy, and universalism. 
Seriously it's really that simple, but of course many of you cannot do part with the pretty art and lore, and of course Holy Father Francis whom many appear to be under the delusion that he's an ultra-progressive ready to disestablish hundreds of years of church doctrine and practice for social justice. Also the fact that the church is the single largest Christian denomination appears to cause many of salivate in the potential social leverage they'd have in pushing quite frankly whatever they please in an act of what Holy Father Francis has called Cultural Imperialism.

A shame you won't quit the disingenuousity and just leave.