No one has seen the evolution you espouse
I showed you that evolution is a change in allele frequency in a population over time. And such changes are indeed directly observed. I also showed you abundant evidence for common descent, all of which is testable, and has been confirmed. Would you like to see it again?
It is all speculation about the unobservable past,
Sorry, the postmodernist notion that we can't learn about anything we didn't witness, is a foolish error. Would you like to learn why?
Creationists have no problem with species remaining unchanged over time if or when they have no need to do so.
But why it happens or doesn't happen is a deep mystery to creationists. Darwin showed why it happens or doesn't happen, depending on the circumstances.
You and the other self proclaimed experts of evolution are not God or gods.
Nor are you or other creationists God or gods. We merely know more than you do about the way He did his creation. Nothing is so just because you said it. The difference is, we have evidence to show what happened, and you only have a modern revision of the Bible.
You have proved nothing
Science, as you know, proves nothing. It merely gathers enough evidence to make doubt foolish.
my mind is not changed on the matter
Wouldn't expect it to be. But there are others who are considering the issue, and our discussion will help them decide.
and I do not accordingly know better now by way of any change in my mind simply because you said so.
You should always look to the evidence, not authority.