With all the variables we already mentioned I suppose the younger person.It has nothing to do with taxes. It has everything to do with basic human decency which you have shown to be lacking.
Same question to you but they're both citizens but one is mexican, the other is you. Who gets treated first?
We view human decency different when one of the people is in the country illegally. If that person who is illegal and isn't a DACA person they should be deported. I absolutely do not agree with open borders like you obviously do.