I am not against idea of only net tax payers getting single vote. Say if you use government services or receive money such as grant that is counted against your total. If you own part of corporation that gets such support that is counted again. If you or your corporation gets tax deductions or relief those are counted as double. Total everything up and if you are net payer you get to vote. If not no vote for you.
We tried this already in America and have decided that disallowing entire groups of people from voting is bad for democracy. What happens when the federal government passes new tax laws that prevent certain genders, racial groups, etc from having to pay income tax? Are they permanently disenfranchised? This would be a system that I think would rapidly move social progress backwards and concentrate power in the hands…
And USA already disallows voting based on age. And somehow lot of people find it acceptable. Surely voting should be right from birth?