As for the guns issues:
There are two cities in the USA which are most dangerous when it comes to gun-related violence, and those are Washington, DC, and New York. Guess which two American cities has most strict policies outlawing gun ownership?
Something in the south, I presume? In states of Texas, Arizona etc?
Arizona is in the southwest, not the south. Texas flips between the two depending upon who you're talking to.
The group of people living on the social help is growing, thus gaining more votes, and politicians start targeting them by giving them more and more, which makes decline actually faster
I am strong supporter of the - "If you want to have any kind of social help, trade it for your right to vote." solution
If you don't contribute to the wealth of the nation why the hell you should decide the course of the nation?
Because that is the path to dictatorship. For somebody who claims to want freedom for his people and be against oppressive laws, that's one hell of an oppressive law you're supporting. Once you knock down the idea that voting is a right instead of a privilege traded for production, is status is weakened and can be steadily weakened further because it is no longer hypocritical not to. You can't just exclude the poor and the unfortunate. For one thing, it only takes a single economic downturn to scour the voting base and limit it to the more wealthy. If you thought Ukraine was being sold to Putin
before... There would also be the problem of people who would not give up their voting rights for anything, even if they're dying in the street.
As for your standard of contribution, what about students? Retired people (and don't give me "they already paid their dues", because a person could be productive for years and then fall into poverty short of retirement)? Absentees? The sick and injured? If you work in a job that sends money out of Ukraine?
But if that's not enough for you, I'll go on to say that your standard is flawed because that isn't how economy works. If you're a restaurant server, are you really
producing anything? You're taking orders and moving plates around, a computer and some conveyer belts could do that. Despite this, you could still avoid taking any social help. If you're, for example, a miner, then you're producing things, but what if the pay is so low that you need social services anyway? No voting rights, but producing. What if you were born to a rich family and could go your entire life without producing anything for the nation? Furthermore, economy is much about the movement of goods as it is the production of them. Production is fairly stable just about everywhere, and has been for some time. Good economy is about a stable flow of money. 2008 was bad for a lot of people all over the world, but those who sold and horded did well. (That's what you want to avoid, and that's the idea behind things like basic income and expiring currency. Everybody is going to spend in a more or less stable flow without hording.)