well if they are in Mexico then they arent an illegal immigrant anymore. If you love them then yeah marry them.
no,you can not
Get married in the US. the illegal will NOT be allowed to enter the US until his/her Permanent Residency is approved which takes 6 months to 1 year.
Yes a illegal immigrant can move back to Mexico by car because if they are illegal immigrant can. And they are not be force to go back to Mexico but it was their decision on going back by car. Even though they bought the car in the U.S they can still take the car with them because they bought it. Plus the illegal immigrants can stay in the U.S so they have to go.
The citizen spouse has no recourse to the action as US immigration laws no longer allow a citizen spouse to apply for residency for an illegal immigrant spouse. The Mexican national will have to leave the US and file under the required USCIS regulations for reentry.
The illegal immigrant can take his United States citizen son to Mexico; however, it is highly likely that the illegal father will be detained at customs due to his lack of citizenship.
Very difficult to do so; go to government site and find out about illegal marriages.
no.
Indeed.
Your question reveals an unconscious bias. You said,= "How can a US citizen sponsor an illegal immigrant...." = If you "sponsor" them, they are not an "illegal immigrant." Careful, the way your question is phrased says a lot about you. The very term "illegal immigrant" is insulting to ....migrant workers, especially. Mexican citizens surely don't like the phrase and, by the way, Superman was apparently an "illegal immigrant" and you SURELY wouldn't want to insult HIM.
No. An adult cannot adopt another adult.
No.