I would expect no less from someone currently in the US. The US (and Russia, India, and China) will benefit from a Brexit in the long run. I told a good friend of mine around 7 or 8 years ago that the US was starting to worry more about the EU as a threat than previously, and was beginning to enact policy and lube propaganda machines designed to undercut EU influence. US doesn't like being number 2 in anything, and will do anything to dominate. Being an American I am not opposed to this necessarily (the at all costs mentality is sometimes disturbing, but is necessary to show how far we will go when pushed).
The Brits should look around at the bigger picture, and realize that those invested in pushing a Brexit are not doing it for the UK or any bullshit idea of sovereignty, but rather to strengthen interests from outside the UK and Europe. The UK lost its sovereignty the moment its navy couldn't secure the oceans, and the UK is much too small to ever get it back. The UK has some amount of say within the EU, and will have absolutely no say in anything once outside of the EU.
Personally, I would like to see a Brexit simply to have another source of data further demonstrating how democracy is a poor form of government. If a Brexit were to go through, I would feel sorry for the people who will suffer from another poor decision made by the brainwashed and/or under-educated masses. I hope that one day technocrats (people trained in natural/hard sciences) can use the cluster fuck caused by democracy as an example for a truly correct way to lead the ignorant in order to benefit humanity as a whole.
Some people should ask themselves what qualifications they have to be making decisions which will impact our collective future. Going further, why should career politicians (i.e. people whose job it is to regurgitate what they are told without thinking), bankers, and businessmen be making decisions which will negatively (based on their philosophy of profit first, everything else second) impact our collective future?
Anyhow, anyway, if someone doesn't understand what is going on they probably shouldn't even be voting. From what I read, few average people understand the situation, and outside of the political circus their opinion would normally be invalid.