Aren’t they basically the same now, unchecked in power? They’re able to muscle into anything using their money and incumbent strength. They can use existing products to sell new ones. They can copy products and give them away. They can wage legal wars.
Personally, I think it’s unacceptable to have any business worth 4T as a single company. It’s not good for competition and for customers in the long term. But today’s anti competitive tactics are different from the simpler monopolistic tactics of the past. We need all new regulations to deal with it.