The actual labor share of income is significantly higher when you include employer contributions to employee health insurance premiums. Healthcare costs have been rising faster than overall inflation for decades, and while many of those costs are passed on to employees the employers have also absorbed a significant chunk. If we want to increase the labor share then we'll drive down healthcare spending. And no, there'…
The idea seems to have merit, but it's unconvincing to people outside your bubble and I'm dubious.