To at least 1 American citizen ... Yes.
I don't think being born IN a country should grant automatic citizenship, but since every country does it that way (AFAIK) ... I guess we're stuck with it.
Who do you think should be granted American citizenship at birth? Babies born in the US? Babies born to at least 1 American parent? And why?
To an American citizen parent - of course. The parent is a citizen why should their child not be?
Should children born to two non-citizen foreign nationals in the US be given automatic citizenship? Maybe not.
The problem with the immigrants isnt the families with a parent who are cituzens. The problem are the families where both parents are NOT citizens who come up here and have children assuming having a child who is a citizen gives them an automatic right to stay without citizenship. In those cases its the children who suffer either way. Either they are being separated from their parents or are dragged out of their country to live in Mexico, usually in very poor conditions.