Actually, you have it backward. A person should work harder to work for reform in their church than in their political party.
You support and give credence to a "church" that invites Jeremiah Wright to speak. When it was announced here that the Methodists were bringing Jeremiah Wright to speak, I called the number listed for tickets and asked the "gentleman" if he agreed with Jeremiah Wright that God should damnn American. He said that "yes" he did agree with it.
If the Republican party did that you would not stop screaming about it.
In our state, the Methodist Bishop also served as lobbyist and he lobbied for abortion, homosexuality, illegal immigration, and wealth redistribution. I am no longer as involved as I once was so I'm not familiar with who is lobbying for the Methodists but if a conservative church would send a lobbyist, we'd be hearing about "separation of church and state".
The truth is you're far more willing to accept liberalism in your church than your political party. You turn a blind eye in your church.