I agree that every effort to humanize capitalism is bound to fail. Rule by the wealthy is a product of the might makes right worldview of our individual and collective infancy. As I like to say, capitalism can't be fixed.

If I understand your argument then, by extension, we should also not attempt to regulate corporations because doing so doesn't address the underlying issues and gives too much power/responsibility to the state.

My view is that we should embrace every attempt to humanize and/or fix capitalism as that is all we are going to get until the day comes that we collectively shake off the delusion that private ownership of the means of production is natural, reasonable, and/or ordained by God. Until then, limiting the damage and ameliorating the suffering is good work. Leaning hard into the public benefit corporation as the preferred model for both entrepreneurship and wage labor is my recommended fix not because it is better than UBI but because I think it is an easier win and because it opens a civic arena within which the peaceful transfer of power from the privateers to the champions of the public good can play itself out.