Ultimately these imposters will be cast out and trampled, like sand. They take all sorts of jobs, live in all sorts of neighborhoods, enlist in the military, and teach in the schools. Everywhere they go they live as described in the beatitudes. When they encounter sin and injustice, they take the side of righteousness. They challenge dishonesty in business and politics, promote sexual purity, and encourage benevolence to all people.
Christians oppose slavery, abortion, sexual immorality, cheating, theft, and greed.
Some Christians may lobby for more righteous laws, but essentially all must speak up whenever there is an opportunity to be a witness for righteousness. I take the opportunity to say that I do not support their endorsement of homosexual activity. But to do this is to become contaminated, and contaminated salt is worthless. Whatever we do, we must not remain silent or adopt the values of the world, lest we be thrown out of the Kingdom. Salt stings in an open wound, but kills the contaminating bacteria.