Getting back to my point - not all illegal aliens are breaking other laws if they are using Individual Taxpayer ID numbers or are not working like elementary school students (legal or not) who do not need Social Security numbers either.
Children are getting social security numbers at birth now....where have you been?
Just a curious question, which part of the word......"ILLEGAL".... alien/immigrant/interloper/border hopper indicates to you that this person hasn't broken any laws...or in your words "other laws". The fact that they are here illegally is indeed breaking the law.