The question comes to mind - why work so hard to consolidate their power so thoroughly? They already have basically everything anyone could want. Why not kick back and relax?

One plausible answer supported by some of the data: They love raping children, and need their power network to continue to feel safe while continuing to kidnap and rape children.

I forgot the exact quote, but the gist was that wealthy people don't need to actively collude, because their interests naturally align: Lower taxes, less oversight, less restrictions what to do with their wealth, undermine any effort that might threaten existing power structures.

That also explains why they naturally seem to support authoritarianism and facism, because those systems offer exactly that.

Don't the panama papers detail a lot of this and a financial trail of how they collaborate with one another?

It seems like the panama papers had been collectively forgotten 2 years later, but they give blatant evidence of the secret elite money laundering and invisible payment network of collaboration IIRC.

As far as Nazi ideology, fascism always goes hand in hand with corporatism, so it makes sense.