There were better social networks than Facebook, but they didn't make money the way Facebook does, so Facebook bought them and killed them. There were better online stores than Amazon, but they didn't abuse humans and play the same games Amazon does to succeed, so they died and it won. Tech monopolies are monopolies, and they're particularly aggressive ones.
I also don't think you grasp the scope of tech monopolies. You cannot operate a business today without doing business with Google. You can hate Google, but you still have to do business with Google. Because if you aren't putting out Google Ads or at least optimizing your SEO for Google's bots, if you aren't launching your app in the Play Store, you're cutting off the majority of your customer base, and you're dying.
Healthcare has to do business with Google. Defense has to do business with Google. Effing Comcast has to do business with Google. There has never been a monopoly on this planet that had more power and that was so unavoidable. And it doesn't take a lot of research to find places people are being hurt or having their livelihoods taken by the unholy beast that it's become.