Oh? If you're so confident, surely you can demonstrate that there are zero good reasons. I'll wait.

Here I enumerate the set of reasons that Apple would make and maintain an iMessage client for Android, G, such that for every reason r in G, r is a good reason:

G = {}

The cardinality of the set G is zero, QED.

I guess if you're not going to take your point seriously, there's no particular need for me to. But maybe save your limp comedy for Reddit next time.

You're the one asking me to prove a negative. Your should be able to cripple my argument trivially with a counter example, which you've avoided doing, twice now.

You're the one claiming a negative is 100% true, without giving any indication you've thought through the topic. In my experience, there's no point in trying to do the work for lazy thinkers.

I'll tell you what. You list some good reasons businesses typically do things and say why they aren't valid for this. If you really can't come up with any after some demonstrated work, I'm glad to help you out.