Left to our own devices, you are right. However, there is always hope if God gets involved - "if my people who are called by my name humble themselves, and pray and seek my face and turn from their wicked ways, then I will hear from heaven and will forgive their sin and heal their land." 2 Chronicles 7:14.
I love that verse, however, the majority of mainline Christians have adopted and embraced the sins and even allow them in their pulpits. Its a sad state of affairs for America.