These are pretty weak arguments to get rid of the EU.
In many democracies, the government has the power to propose legislation. And what democracy doesn't have backroom deals?
The EU is also already dying. Brexit will come soon and Italy is on it's way out. What the remnants will be is unclear but the EU as a whole has already failed. The settlement process to unwind it will be lengthy and painful.
(The reality of course is that the US has had not only a say, but often the only say in how the internet should work in the rest of the world for decades, and when it comes to copyright law we have an undemocratic international treaty dating back generations that keeps pushing expiry dates back and back globally)
That's a non sequitur. I believe that these copyright changes will apply in Switzerland too due to international agreements.
There are many types of democracy, each have pros and cons.
People almost never vote in favor of war.
IIRC they even shot down german war planes that entered their airspace and suffered no retaliation.
So yeah, they do have a knack for maintaining their neutrality.
I haven't looked at who voted, but I suspect that the votes aren't on a country-by-country basis either.