> it looks to be more freeing
There are many other factors, and it depends on what you mean by "freeing". Political power, like energy and matter, is generally conserved; the question is, who controls it.
* The ethical, generally accepted solution is for the people to control political power, via democratic government. (Undoubtedly it's very imperfect, but that's inevitable for every large human institution.)
* When you reduce government control of political power, you usually simply transfer it to someone else and often that's not 'the people'. Lacking a systematic, rules-based way to control and express that power, it often becomes might makes right, which dis-empowers most people.
* As a simple example: Less regulation by government often shifts power to big business; most consumers lose power: Government is responsive to them, and regulations often empower consumers.
* Regarding Brexit, intra-European issues and power won't go away. If there is no EU, who determines trade rules? Border laws? Security issues? The fair way to do it is to take a vote. Sans the EU, it's might makes right. We've seen how that works out in Europe (and everywhere else), and in fact the EU was created to prevent a repeat of those scenarios. Now the UK is essentially refusing to respect the votes of their neighbors and will return to the stone-age doctrine of power in a state of anarchy (which is what international relations is widely regarded to be). They also don't get a vote now.
There are other factors too, of course. The UK used to be a major world power; then they became a second-rate one, but allied with the U.S. and Europe. With the rise of billion-person economies in China and India, and with the U.S. already five times larger (320 million), the 60 million people in the UK become an afterthought on the world stage, with limited ability to affect the world's or their own destiny. A united Europe, however, with ten times that population is a player.
The UK is 'freer' like Hawaii would be if they left the United States. Sharing government with other people is not prison or a lack of freedom, it's simply respect for others.