None of what you laid out actually explains why it is waste. Doing things costs money. The $65 billion spent on consultants could be providing $650 billion in value.
I’m unable to read the full article linked but from the first two paragraphs it was not setting itself up for explaining why it’s waste either.
These people hear a big number going to a person they are told to hate and automatically think it's fraud and waste. Simply put, anything I don't agree with is bad and needs to be cut. That's the whole philosophy.