Labor's share of income vs capital's has not remained constant. Not even close.
Sure it has:
No, it hasn't. Tax foundation is a conservative think tank, they're not a trustworthy source for this info.
https://fred.stlouisfed.org/series/W270RE1A156NBEA
Every time I engage with a libertarian (always a pointless endeavor) I feel like I have to take a shower after. Just.. ugh.
Labor's share of income vs capital's has not remained constant. Not even close.