Pinning CAHSR jobs program as hyperloop's fault is pretty funny. Maybe he did intend to upset it but since both turned out to be massive boondoggles doesn't seem like it worked - they managed to delay it themselves just fine.
Whether he was the only reason for high speed rail being derailed and delayed isn't really the point. He intentionally worked against mass transit, and lied repeatedly about hyperloop as part of that.
Certainly not a Musk fan, but IMO the real point of hyperloop was more that it's on a route that could be constructed within our lifetimes. (Unlike CAHSR, check their website.) Of course, California knows this because that's where they built Interstate 5.
I think you've missed the point - that wasn't the reason at all. In a way he was right too - we'll have fully autonomous buses and private vehicles capable of making the full trip down the I-5 long before they complete even the middle of nowhere section they currently have planned.
They're basically not building anything, and what they are building will be borderline unusable because of the route they chose so the car will be faster, cleaner and more convenient. If you want fast you can take the plane. So unless the problem is "how do we siphon as much tax dollars as possible banana republic-style?" I really can't agree here.
Whether he was the only reason for high speed rail being derailed and delayed isn't really the point. He intentionally worked against mass transit, and lied repeatedly about hyperloop as part of that.