Do you go to stores and just take things, too? There is a thing you want. Someone has spent time and money and effort making it. They want money in exchange for goods or services. Yeah it's great that the church down the street is giving food away for free, but in most places you pay money for things.
Yes well as another commenter noted, this is actually freely available software, and when people provide goods and services for free it depresses the price of said goods and services. And anyway this was a comment about Apple in general, how every fix costs at least $20. Airpods not synced up? Just buy a new pair! Etc.