Precedent has been set as far as the constitution applying to non citizens. Law in the United States is codified by constitution and by the legislation branch of government. Courts interpret these laws and set precedent. Our legal system in the U.S. relies on precedent to judge similar cases before them. I have provided precedent setting cases with regards the constitution, and its application to non citizens.
I don't believe that illegal immigrants should have the same rights or that it's settled law yet (with supreme court ruling on that specific point)
It really does not matter what you believe .
In the modern legal system, the term precedent refers to a rule, or principle of law, that has been established by a previous ruling by a court of higher authority, such as an appeals court, or a supreme court. Courts in the U.S. legal system place a high value on making judgements based on consistent rules in similar cases. In such a system, cases based on similar facts have a fair and predictable outcome. To explore this concept, consider the following precedent definition