Well, I think you should be paying a net positive in taxes to be able to vote, whether it's from a job or from (like the mother and father raising their children) from other income sources.
If you're a net taker you shouldn't be able to vote yourself other people's money (i.e. my and other hardworking people's money).
This would encourage those who "use the safety net as a hammock" to get off their butts and get jobs, no longer living off of the money of others since that money would be remaining with the taxpayers, which they use to buy stuff and start/revitalize businesses. Those who are truly disadvantaged should be supported, ideally, by their families and by private charity, but the culture's really not at that point right now, so that would have to be the government. But really, that's a tiny percentage of people compared to those who are perfectly capable of providing for themselves and their families.
Any leakage would be taken up by the massive boom in private charity which would follow. Right now the government is squeezing private charity a lot, since why would you go to the Salvation Army (which requires accountability) when you can live off the dole and ingest whatever mind-altering substances you want on the streets?
And the new workforce participants would have more money since they'd be taxed less.
And business owners (small and large) would have more money so they could start new facilities, hire more people, invest more in their respective fields, etc.
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