I don't think Patel was saying that there are an endless amount of copies of Swift's music on the internet. He was saying that there is an endless selection of music available, which you agree with in your second paragraph.
And that hurts Swift's point - if music implies art, and art implies important and rare, and important and rare implies valuable, and valuable implies it should be paid for - that doesn't explain why so much music is not paid for. It also doesn't explain why some people create music for free.
And that hurts Swift's point - if music implies art, and art implies important and rare, and important and rare implies valuable, and valuable implies it should be paid for - that doesn't explain why so much music is not paid for. It also doesn't explain why some people create music for free.