There is no "infinite regression" in my position.
Then what is the origin of your agency?
That's more anthropocentric ideology. There is nothing that suggests that non-code-based self-replicators cannot emerge on other planets.
So then, that would be some natural origin?
I suspect that it is creationists who first instilled this belief in the overall debate over life's origin, with the bizarre argument that if scientists cannot presently explain how life arose that god must have done it.
Basically, yes.