Anyone with half a brain could figure out why licensing an activity that is a 'right' is taking that right and making it a priviledge. DUH
If travel is a right, then driving is a right. Licensing driving takes the right away. DUH
Regarding the Constitution, and the Bill of Rights, it does not list all the rights that the people have. It lists some rights that are to be protected at all costs. All other rights are self evident. Read 9th and 10th amendment. DUH