What you say is absolutely true. The trope of the neglectful, greedy foster parent is impossible to get away from. And if you provide love and care for the child, then you are trying to 'steal' it. Despite the fact that we formed our lives around these kids, made sure they visited and had frequent FaceTime with parents, we were still bullied by parents and agencies alike. The agencies will not hesitate to lie to foster parents to get you to agree to take a child into your home, and parents will not hesitate to lie to the state to get the child moved out. And both will throw you under the bus if anything goes wrong. Agencies receive 3/4 of the funding that should go to a child's care, apparently so irresponsible foster parents don't spend it?
Our most recent was a happy case, with the child being reunited with a healthy mother, and dad not being anywhere near. A friend had her life broken by two very high-need children born addicts with no parents around. She got them healthy, endured their severe behavioral issues and carted them to specialists many times a week. And every time she wanted to find a new foster family because she was out of money or just burnt out, the agency told her that 'adoption was right around the corner' to keep her engaged. Right up until they showed up to take them away with no notice. It was sick.
I never suggest anyone get into foster care. It's a broken system.