I don't think the average conservative believes in or obeys the Golden Rule or loves his neighbor as himself. Giving tax cuts to the rich and turning the poor and immigrants away isn't very Christian in my book.
"Your book" is the liberal playbook, and you're bringing religion into the debate to try to undercut our message.
The answer is, everything is subjective. While you may not believe that conservative tax policies are very Christian, many of us do.
We don't give tax breaks to the rich because we love rich people more than our neighbors. We give tax cuts to the rich because we believe it's a good way to lift up our neighbours along with the whole of society. And in that sense, you might see we are actively fighting for our neighbours. I think it's absurd to suggest that conservatives, in particular, aren't neghbourly or charitable.
Like I said, conservative christians are just deluded people in two unrelated areas.