There is forgotten and abandoned economic theory from Joseph Schumpeter, which is totally simple, but explaining more than anything else. It is out of keynesian/right wing dilemma.
His theory is simply that each entrepreneur is trying to get the monopolistic power. Because only the monopolistic power brings profits.
The tech giants, but even small affiliates, prove this is correct. There is nothing sweeter than to occupy certain niche and keep everyone else at distance. This is how the real money is always made.
I am far from saying someone has to stop them or not. But it is hard to blame the big companies for what they do. Any manager who is in the position must act as they do. The ones that were less evil were simply phased out exactly by those unscrupulous companies. It is and must be a race to the bottom, unless heave regulation steps in. But the regulation causes just other disasters.
If you talk to God, you are praying; If God talks to you, you have schizophrenia.