Infrastructure was an example of a common good that rich and poor people use alike - not something that necessarily is fixed with equality.

Thinking about taxes in terms of producing revenue completely misses the point. Taxes in this context is a tool for increasing equality.

As for the ceo killings, if not the US increases equality, we will likely only see more of that behavior going forward.

The ceo killing was not a result of inequality. Both the assailant and the CEO were rich and the motivation was entirely the nature of health insurance as an industry.

So given that the only recent CEO killing was not a result of inequality, what evidence do you have to support the notion than increased inequality would increase CEO killings?