Christianity and the USA

I sat in church this morning listening to the sermon and for some reason started to wonder about the Christian credentials of the USA. The Christian Right pontificate that their philosophy is bible based but in some things they cherry pick which parts they think are relevant. It says though shalt not kill but they support capital punishment, or state killing, and many support having freedom to own and use guns. Nowhere to me do they talk about the love of Christ for everybody.
They forget this passage from the New Testament:

“Then the King will say to those on his right, ‘Come, you who are blessed by my Father; take your inheritance, the kingdom prepared for you since the creation of the world. 35For I was hungry and you gave me something to eat, I was thirsty and you gave me something to drink, I was a stranger and you invited me in, 36I needed clothes and you clothed me, I was sick and you looked after me, I was in prison and you came to visit me.’

37“Then the righteous will answer him, ‘Lord, when did we see you hungry and feed you, or thirsty and give you something to drink? 38When did we see you a stranger and invite you in, or needing clothes and clothe you? 39When did we see you sick or in prison and go to visit you?’

40“The King will reply, ‘Truly I tell you, whatever you did for one of the least of these brothers and sisters of mine, you did for me.’

41“Then he will say to those on his left, ‘Depart from me, you who are cursed, into the eternal fire prepared for the devil and his angels. 42For I was hungry and you gave me nothing to eat, I was thirsty and you gave me nothing to drink, 43I was a stranger and you did not invite me in, I needed clothes and you did not clothe me, I was sick and in prison and you did not look after me.’

44“They also will answer, ‘Lord, when did we see you hungry or thirsty or a stranger or needing clothes or sick or in prison, and did not help you?’

45“He will reply, ‘Truly I tell you, whatever you did not do for one of the least of these, you did not do for me.’
Where is their adherence to this when voting against universal medical coverage? Where is their help for the homeless or those less fortunate than themselves?
It is a puzzle to me that they call themselves Christian.