The way the EU is headed is not where I want to be. It's apparently so undemocratic that if it were a country itself hoping to become part of the union it wouldn't be let in. Last I checked we originally joined the "economic community" for trade benefits, not for the EU to start peripherally dictating our laws, creating an army, or an anthem, interfering in marriage classifications, etc. and trying to become a "United States of Europe" for political as well as economic purposes.
The situation is by no means black and white as neither staying in or leaving the EU as it stands now are remotely ideal for the UK. Either way you slice it, the single currency wasn't exactly a well thought out idea, the free movement 'deal' does have consequences, and the Western World is on the slippery slope downwards economically, not upwards. The EU and its "precariat" labour force is what allows it to at least hope to compete with the likes of China and India economically, but this is basically plugging the hole in the boat, not repairing it. In the long run what "opportunities" this is providing is only doing so because big and small business benefit from it, but it is creating here in the UK an employment market exploitative of employees, who are losing their security and worker's "rights" by the year, and in my lifetime it's never been so hard to get a job with all the ready competition for one. It seems to me the future looks bleaker, not better... where if your kids and grandkids want a job they probably better be ready to go travel where the work is, just like those folks from Eastern Europe -- if there is any to be had.