

First, you actually can get citizenship from where you were born as well as by blood. It’s pretty common. They have dual citizenship. Done.
Your example is not as persuasive as you think. If I’m a nation, of course I need to care for the babies that live within my borders. Are you a monster?
I’m gonna have to tax and get help from the the parents, but that’s pretty normal for a nation to do.
Countries exist for the people that live there. If you live here the country is for you.
Why would they not pay tax? They’re living here, working here, buying things here. Those are where we collect taxes.
When your rational for “your parents came here illegally, so now you have to live in a country you’ve never known and don’t speak the language” is “someone might not be paying taxes”… You’re being cruel to no purpose.
What constitutes “cruel and unusual punishment” is also defined by the laws of countries. That doesn’t mean that we don’t determine that some punishment is a human rights violation. Likewise, deciding to punish someone for the behavior of their parents is violation of human rights.