Murder and taxation are quite different things.
One is a proactive act against another, which commits great harm... in fact, pretty much the biggest harm, for the end of existence is somewhat final.
The other me minding my own business, and then people threaten me and take money from my bank account at the threat of violence.
By this metric, the Government is acting in a violent manner. Precisely the same as a murderer is.
Where as, morally, I'm the innocent party.
More importantly, take a look at it from a smaller example.
You live in an isolated, small town. There are 20 of you. You live alone, bother no one, and other than approaching and trading for things, you certainly cause them no harm.
There is currently no tax.
One day, 7 of the people get together in an open area. They start to discuss the common good, how this and that is needed, and the list goes on. Eventually they decide that it is best to go to everyone's home, and demand goods that can be used to build some benches for the park.
When the gang of 7 show up at your house, you stand aghast as they explain that you need to give them some wood you have in the back. Wood you chopped, dried, and wanted to use for firewood that winter. And when you fight them?
They kick you into submission, and then throw you into a locked hut as punishment for dare defying them. For kicks and giggles, they take the rest of your wood as an additional penalty.
THAT IS TAXATION!
Just because there are a lot of people involved in the collective practice, does not make it right!
And most importantly, I can again at least stomach it to feed starving people.
But to build a park bench? Buy art? Take money and give it to everyone, even if they don't need it? Give money to warlords, overthrow foreign governments and put puppets in place of them? Build, create, and do all sorts of non-essential things?
As for your points about moving, or whatever else. No, guess what, this is my country. I get to tell everyone what an ass they are because they support inane taxation levels.
At least this freedom has not left yet.