Habitual law-breakers contribute to the moral breakdown of a society.
We do not necessarily improve the country by excluding them arbitrarily while admitting less desirable candidates simply because they stood in line.
Hogwash. What, pray tell, makes law abiding applicants less desirable than those who ignore the law?
Close the boarders so that the population of illegals is a controlled set, then determine those that will be invited to stay based on a strict set of requirements.
By party registration perhaps? What makes you think that you would be able to come up with criteria that won't get you sued for discrimination? You're out to lunch.
I was going to take the time to write a coherent response but decided against it when I noted there is not a single rational thought in your response and I would be wasting my time.