Earlier quoted context omitted.
This type of tax plan will incentivize wealth aggregation in corporations, while increasing the cost of employees and goods/services. You want companies to spend, to increase economic cash flow and generate jobs, which is why existing corporate taxes are on net income, not revenue or costs.
Why would shareholders want a corporation to aggregate wealth?
Corporate income tax today allows for companies to pay employees and buy goods/services without increased tax cost. It incentivizes cash flow into the economy and job generation by taxing whatever is left over (net income) after doing business.