By "crap", I think he means something like "poorly understood copy cats of successful ideas", not "really bad ideas". See the whole quote:
> I think what we’ve had is a handful of investors who have extreme vision who make great investments in things that are amazing businesses: Facebook, Google, Uber. And then everybody else reacts to that success by trying to do the thing that most approximates the thing that’s working. As a result, most of those businesses are fundamentally not good, they’re poorly run, and they never should have been invested in in the first place. But the capital came in because the person who had control of the capital was able to justify it intellectually to themselves versus something else that could have become the next Facebook or Google.