How can I help a friend come to America on a tourist visa when she has no no income

OK so anytime a foreign national wants to qualify for a tourist visa, they have to independently establish that they have enough contacts with their home country that would motivate them to return. For example they have a steady job and a steady income, and they have real estate or equity in a home that would motivate them to return after their visit is complete. Generally speaking, when someone applies for a tourist visa, the US host Who they plan to visit, can do very little if nothing to assist that person in qualifying for a tourist visa.