I've NEVER in my life heard any such thing in any church I've been in. I have been in churches that have food pantries, soup kitchens, and clothes closets, and benevolence ministries where they'll help pay people's utility bills, buy medicine, buy groceries, and yes, assist them in finding a shelter or a place to live. Some churches run their own shelters, poverty alleviation ministries and street ministries. Some have job training programs (teach skills), job interview training and free (nice used) suits. I know of one that goes out to the remote places where they know homeless people are, and gives them tents, blankets, lanterns, food, medicine, and other necessary items.
That's a lot of stuff. Of course, it's privately funded, by voluntary donations, by cold, heartless conservatives. Those mean old people are also the volunteers. Those greedy donors actually like giving and would enjoy giving even more if they had less of their income taxed away from them. Although, I also know people who continue working or creating new businesses, simply so they can increase their income, directly for the purpose of being able to fund more ministries and charities.
I'm sorry they can't or haven't reached every last person, and get them all out of homelessness and poverty. I'm also sorry that you had such a difficult experience. I can't even imagine how tortuous that was for you. It's sad that your family abandoned your uncle and later you, instead of supporting and helping you (which is what family is for). You've been through a lot, and I appreciate that.
I think you're wrong when you call conservatives heartless. They care and have empathy and concern, and want to help. They just want to do it privately, instead of having the government do it. And, I believe it is difficult for people of ALL political persuasions to have true empathy and understanding for the plight of the poor when we are removed from it in our daily lives and haven't seen it hands-on or, as you said, "walked a mile in their shoes".