No, an iOS 0day _is_ less valuable. Every exploit acquisition program pays out more for an Android RCE than it does for an iOS RCE. And it's not surprising: give iMessage a mean look and a .png that looks funny and it breaks under the pressure.

The rest of the thread above is merely the delusions of an Apple fanboy, followed by dozens of people listing out reasons why an iPhone is more vulnerable to attacks, both from external actors _and_ from Apple collecting massive amounts of data and having total remote control of "your" device.