I know and that makes my point. You do not mind that a few brown skinned citizens and legal immigrants will be incorrectly arrested for what is the equivalent of suspicion of jaywalking. Even you wish to only treat it as a civil offense, but you don't care that the government will be able to arrest people without warrant for this horrendous civil offense.
It's apparent you don't really understand what is wrong with that, but you should. You ignore thousands of years in the development of our laws, and the balance between security and individual rights. The balance between arresting CRIMINALS (not jay walkers) and protecting the individual from false arrest. According to you, the cops should be able to do whatever they want no matter how small the offense.
Who cares if you are held against your will, you committed a crime... err.... well a civil offense....uhhh.... well, we think you did based on lack of papers and skin color. Besides, you can sue the cops... if you can prove they acted in bad faith (meaning you will not likely have a case). It does not matter to you because you are white and don't really give a shit about the rights of anyone else. That's what it comes down to. But it is sad to see you idiots so ignorant of the law, the letter or the spirit under which it has been formed.
Suspicion of a civil offense should not get someone arrested without a warrant. Not in America. You do not care about our heritage of liberty and protection from unreasonable state action. I do.