Based on my recent experience of visiting Europe - yes, it is. I stayed mostly in France, was there during the Brexit vote, and everyone I spoke to was pretty keen on exiting the EU, voting right-wing, and seeing it all crumble. They also have several separatist movements, especially in Brittany, which seems to be more anti-EU than anti-French...
Question: what is the primary grievance against the EU?
Poland for example is refusing to accept these immigrants and paying a pretty big fine for each one they turn away [1]. Other countries like France and Germany are buckling to the pressure from the EU and accepting them, and we've all seen how well that has worked out for them.
So I think not having to take this crap from the EU is one attractive reason to leave.
[1] http://www.independent.co.uk/news/world/europe/poland-refuse...