The liberties are already going because they aren't sustainable if the EU stays the way it is. Schengen is practically a thing of the past. Benefits and worker rights will go next.I think you could be surprised. Especially with above incidents and sectarian undertones again using Ireland as an Example. All you need is a coupple of Fanta scruffs or Celtic fans tearing up the centre of Amsterdam, you have to remember the liberties you are potentially giving away.
The EU would have worked if it was more directly accountable, remained the small number of rich early members and kept it's borders controled and implemented a points system for immigration from outside. I used to be pro EU.
However that was never their plan.