If B < X then B is not a basic income. It's like you said, an salary subsidy.
If B >= X then employees can walk away from any job for any reason. It inverts the labor market. Instead of employees competing for jobs, employers compete for labor. Portions of tech industry exhibit this inversion. Saleries, benefits, working conditions are off the charts compared to say Walmart line workers or Amazon pickers.
If B >= X then employees can walk away from any job for any reason. It inverts the labor market. Instead of employees competing for jobs, employers compete for labor. Portions of tech industry exhibit this inversion. Saleries, benefits, working conditions are off the charts compared to say Walmart line workers or Amazon pickers.