The job doesn't have to pay 2800/month. It doesn't even have to be a 40-hour job. You could get 1000/mo and the government would make up the difference. What they want is a baseline where everyone gets something no matter what. And that isn't attached to a minimum wage.
> who are going to wind up doing all of the low paying jobs.
This proposal removes the concept of a low paying job.
You're describing a significantly different proposal there: with a basic income, the government doesn't make up the difference of pay up to some threshold, which amounts to a massive marginal tax rate on low income labor and a massive subsidy to employers of low income labor. That's a guaranteed minimum income.
With a basic income, the government gives you the same size check, regardless of if you work and how much. I believe what Switzerland is proposing is a basic income.
> who are going to wind up doing all of the low paying jobs.
This proposal removes the concept of a low paying job.