I'm guessing it's less just the high taxes, and more that people feel like they're not getting much for their high taxes. A common theme in any American article talking about the Nordic model, for example, is quotes from people saying, "yeah taxes are high, but at least the government provides a lot of useful stuff from that."
Precisely. Our taxation system feels closer to a middle age poll tax than anything else. Upon collection is nearly impossible to get a precise idea where or what they're doing with that money.
I wouldn't be surprised if more than 20% of that gets funneled to offshore accounts - Current investigations just found that the current ruling party "North League" owes more than 49 million euros in "missing funds".
Their answer was "well, We'll give them back errr...eventually. Oh Look there! Illegal Immigrants! starts running"
Previous left/right/centre governments weren't any better.
It's repulsive, and I don't see any hope for change. I'm rather left-leaning, I'm aware that state-managed funds aren't where you should look for efficiency, but the current situation is going south really, really fast.