I said near monopoly. They are all around us and that ruins markets. Google is a near monopoly, Facebook too. Look at cell phones, you think it's good that so much market share is owned by two companies?
No, not even close.
This is one of the universal problems with left-wing dogma.
You look at outcomes, and assume that the outcomes, means there is a problem with the system.
No, outcomes are just that.
A real monopoly, is one where people have to use your service, because they have no option. If there is another option, then it is not a monopoly, no matter how many use that service, and how few use any other.
Google is not even close to a monopoly. There is info.com, bing, yahoo search, duckduckgo, and numerous others.
The reason most people use google, is not because it's a monopoly, but because it's the best.
Trying to oppose that, means you are against people using the best services. That's a ridiculous position, but perfectly normal for socialism, which is why socialists countries end up in ruins.