Fraud is different from theft. Fraud is manipulating consent. Theft is taking by force what isn't yours. I don't know why everyone seems to be conflating the two everywhere in this thread.
Destroying 100 million is best compared to something like a "killdozer"[0] rampage. Holmes' crime was the destructive equivalent of leveling ~300 homes.
[0]https://en.wikipedia.org/wiki/Marvin_Heemeyer#The_'Killdozer...
It was very lucky nobody was seriously injured by that thing.
In both theft and fraud, the victim is deprived of of something. That’s why people consider them similar crimes.