For the most part, big tech companies provide amazing service. I can't think of another industry that has a product as good as the tech companies of today have. Yes there may be some fakes on Amazon, and DDG in some use cases may be better than Google, but for the majority of consumers these companies provide excellent service.
We really need more scrunity when it comes to acquisitions, the fact that Google was able to acquire YouTube and Facebook was able to acquire Instagram shows a real lack of foresight on regulators. Perhaps this is because when you're busting up Standard Oil you have more tangible view of what the monopoly looks like: the oil company owns the fields, the railroads, the refineries, the whole damn stack. When it comes to tech everything is a data play, Google (a search engine) and YouTube (a video site) look like distinct industry, but at the end of the day the main resource being competed for is attention and data.