the problems of elections when governments can't actually address voter concerns because they're locked into eu structures
I don't see that actually....
Poland doesn't want to take part to help refugees and they don't have to...so the polish gov is very well able to adress their voter concerns. That other countries shouldering the burden don't look favourable to the solidarity ditchers is another point...
Merkel seems to be dead set on Nordstream 2, having Germany's energy needs (voter concern) in her view. That Poland and others don't look favourably at this business with Russia is another point...
Remember the planned constitution of the EU a few years back? Voters in France and Holland (if I remember correctly) voted it down and that was that, there is still no constitution for the EU.
Brussel isn't from Mars, all these people working there, steering and controlling the EU are being send by their member states, and of course they have their voters at home in mind all the time...it works as well as the govs at home, sometimes good, sometimes not so good...but that is no foreign overlord.
Do you have an example when voter concerns at home can't be adressed because of the EU structures?