I have never much cared for Amber - one way or the other - but I hold everyone in high esteem who not only talks the talk, but walks the walk. I am so over "virtue signaling" that I applaud everybody who not only tells people to save the children, but at least tries to do it herself.
I have met many foster parents, and find most fall into three categories:
The virtual saints
Those who "wing" much
Those who are disenchanted, burned out and might even be on the verge of turning aggressive (either verbally, emotionally or even physically)
A childless couple I know takes in emergency cases: children, whose parents have had an accident, children who had to be removed from a crime scene or any other extremely traumatic upheaval. This couple is a haven of love, warmth and care. Obviously both are highly trained to deal with those poor children, but I adore them. And even though the children don't stay very long with them (they try to leave the children there for at least a couple of weeks, esp. when they see that the children really need that bond) they still have contact with some of them and sometimes get cards or thank-you letters years later. As I said: my personal recommendation for sainthood.
However I have also met other people, who started with the best of intentions and couldn't deal with many of the problems, they burned out and as with biological children, your desperation can sometimes turn into helpless violent aggression. Very sad for all involved.
Those are NOT the cases you read about on the internet: the cases in which the foster parents took the money and starved the children or used them as labour or sex slaves. People who do this are very very sick.