No one tries to control your morality.  You are free to leave the Church at any time and join a Protestant Church that teaches the liberal, secular, atheistic humanistic Gospel you are looking for.  You are also free to live by the morals of liberal, secular, atheistic humanism if you so choose.  

Is anyone putting a gun to your head and forcing you to be Catholic? If, per chance, you aren't Catholic, why do you care what we believe?