One of the acquisitions you are talking about was 4 people that started a company and was "acquired" by google less than a year later. The idea that something like this should be blocked by competition regulators is frankly,
totally insane.
Aside from that, in 2004, Google was a ~30B company, 1/3rd the size of e.g. UPS. For comparison, Microsoft was ~10x bigger.
The rewriting of history in this thread is just crazy. I don't disagree that google today is huge and some regulation is necessary, but what you are proposing should have been done in 2004 is off the charts ridiculous. Not even totalitarian dictatorships exert that much control over their populations.