Illegal immigrants don't need taxpayer benefits as they are not citizens of the United States. Undocumented immigrants are in this country to seek a better life, yet they need to do things according to the law just like anyone else. California won't give licenses to drunk drivers, so why would they issue licenses to illegal immigrants?
Being an undocumented immigrant shows that you are illegally in this country. Being in that situation also shows that you are not a paying citizen and could possibly be working here illegally while paying no taxes. This means that you are taking money away from potential workers who ARE here legally. Having a license is a privilege and should only be given to those who go through the right channels to make themselves a citizen of our country.