> “I hate the Bitcoin success and I don’t welcome a currency that’s so useful [for] kidnappers in our stores and so forth,” he said. “Nor do I like just shuffling out a few extra billions and billions and billions of dollars to somebody who just invented a new financial product out of thin air.”

The main arguments are :

1. It is used for nefarious reasons (true of virtually all currencies)

2. It made billions for its creator (technically true although never actualized and likely never will be)

These aren't comments from someone who has put serious thought and research into the topic.