I advocate for the fairer distribution of wealth in society. Not only because it's fair but because it's
better for everyone. There are many reasons for this including avoiding the alienation of labor and giving people dignity. All it takes is the ultra-wealthy to have
slightly less wealth.
So why is wealth concentration bad for society apart from that? Because the ultimate form of wealth distribution is war and revolution. It's way the descendants of Rockefeller, the Medicis or Caesar don't own the world. Society eventually snaps and a lot of violence ensues. Eventually you end up with the French Revolution and heads end up on pikes or separated by guillotines.
One of the messages of Fight Club is that the rich and powerful cannot insulate themselves from the people they are oppressing. Your gardener, your driver, your chef, your security guard. Any of them is capable of taking matters into their hands and they will only be pushed so far.
You saw this play out in Japan with the reaction to Shinzo Abe's assassination a couple of years ago. While world leaders were outraged, the Japanese kinda got it. You can dig deep into this with the Unification Church, its influence on Japanese politics and, if you really want, how the Unification Church is tied to the CIA.
United Healthcare is quite literally killing people for profit. Just like the Sacklers and so many others. We've become completely desensitized to this. Private health insurance is completely inefficient (look at how much the US pays per-capita for health care vs any other developed nation and then compare our coverage). We could literally save millions of lives and cut costs by getting rid of these lecherous middlemen.
So I don't condone or justify violence like this. It's simply analysis to see that this kind of thing is going to continue to happen as material conditions worsen and wealth inequality rises. In his ~3 year tenure are United Healthcare CEO, Brian Thompson quite literally killed thousands of people yet there's so little outrage over that.