I agree with your post and you list a number of good ideas. Except...
> If you really want you can tax companies' revenue (not profits).
That one doesn't really work.
Some industries are very low margin and capital intensive. There is, realistically, no level of revenue based tax that a supermarket chain can pay. Maaaaybe 1%. Max. Same goes for airlines, steel mills, and a thousand other old-school bricks and mortar industries where a lot of money may come in the door, but then in goes right back out again as a cost of doing business.
Other industries are very high margin, including a lot of tech businesses that were all familiar with. A 1% revenue tax would represent a massive decrease in their total tax bill, but if you charge them a more realistic tax rate you've bankrupted everything that's not a highly profitable tech company, which is basically your entire economy.
(Yes, they'll try to pass it on, but a supermarket chain isn't going to be able to pass on a 20% tax on revenue. They're already making no profits, paying crap wages, and bargaining their supliers down to the wire; the only thing they could do is raise prices 20%, and people who aren't working at the aforementioned high-margin tech companies can't remotely afford a 20% surcharge on their food bill with no offsetting changes to their tax or benefits. Plus, if that's actually the policy result you wanted...maybe just enact a 20% VAT?)
Of course, you could adjust the tax rate based on how capital intensive the industry is and how high your margins are at which point...it's a tax on profit again. :)
The more you dig into it, the more it becomes clear (in my view) that revenue based taxation isn't the right lever to pull. Whatever policy outcome you want can be more easily gained via other methods.