All of the oligopolies? Do you really believe that, e.g, tech companies are "fighting" each other? What about Big Pharma? The Food industry?

In any case, you are arguing semantics. Competition can be friendly.

The tech, food and pharma industries fight each other tooth and nail.

I don't think this "friendly competition" happens in the business world. It's just an ordinary fight.

I guess we have different ideas for "fighting tooth and nail".

- Steve Jobs and Eric Schmidt would regularly discuss matters together.

- They have pretty solid "do not poach" agreements.

- None of them actively blocks their products from running on each other platforms

- None of them launch products with the sole intent of destroying each others cash cow. E.g, Google could release flagship products at budget prices forever, just to take from Apple's market share. They certainly wouldn't lose money over it. Why don't they do it?

Competition? Ok, but it never comes to the point where they actually want to inflict damage on one another. This is as friendly as it gets.

Pepsi not releasing coke's formula despite knowing it

Bill Gates bailing out apple