You've been insisting on a narrow definition of "Western" that excludes any hybrids of Western elements with other genres or settings. You're trying to erect rigid walls between genres and define them in exclusionistic terms, which is grossly missing the point of what genre is.
Gentlemen i think you may wish to continue your Western chat in this other thread:
a new Western as a TV episodic series? discuss
In it we discuss what westerns are. Timely as the blu-ray for "Hell on Wheels" is released this week for season 1. This is a current TV series that is a period Western and was renewed for season 2.