I've been reading about the invading family children current crisis for the last few days. From what I understand, parents of these children (which are many times not the parents) are separated from the children, when the statutes demand the children are released. After the release, they may be sent to a federal funded day care facility for me to help finance.
Invading a country without permission is not allowed in most countries. In some, they shoot you at the border. It's what keeps a country, and its citizens, sovereign from other nations. Promoting such, or ignoring the laws, is sedition, or treason.
So, if you haven't quite figured this out, scale down the size, and imagine a Guatemalan family knocking on your front door, demanding asylum, and expecting you to allow them to stay, while paying their expenses. I know what I would do, and have a strong feeling over 95% of all people would to the same.