It is the tax enforcement & border enforcement that is the terrorism in this case. With out the welfare state & the tax imposed to sustain it there is no artificial draw to the region. If the yearning for liberty is the only motivation one would have to uproot & try their hand in the agora then we should welcome them with open arms. However the state has created artificial motives for coming to the U.S.; blow back, welfare "benefits", education, etc. So it's not the travel of free people that needs to be infringed upon but, the existence of the state which is distorting the market with immoral & unnatural incentives. Those incentives, by the way, are funded by the largest terrorist organisation in history...the U.S. "government".
RE: The Immigration Debate: Adam Kokesh vs Stefan Molyneux (Video)