If you are going to make that argument then you can say consoles have been widely available since launch because scalpers have been selling them on eBay. No one is talking about availability in those terms or retailer forced accessory bundles. That shouldn't have to be explicitly pointed out.
Edit: The bundles that have been highlighted in this thread with screenshots have been factory bundles and you replied to the post that highlighted it. So yes, factory bundles were in fact specified.
Those screenshots were provided after the broad assertion that "bundles are available so there are is no limited availability" was made. I realize you may have not been following the conversation through since the beginning. The poster I was speaking with made broad and overreaching claims. Therefore I was showing how the logic of such claims are flawed. If he was referring to a specific bundle from the get go, that is his burden to say so.
Even so, I still don't agree that because there is a bundle available, that is unattractive to many people, that shows supply isn't constrained. As you know, asking an Xbox customer to pay for a first party title upfront is redundant to many as they are included in gamepass. To clarify, Microsoft missing the mark with their product bundles should not be used as evidence, either way, regarding availability of the individual components in said bundle. It's just not a sound argument.
Also, do you really want to be throwing your lot in with an individual who in there last post made the claim that " there isn't demand" for Xbox? I think anybody would agree that there isn't "as much" demand for Xbox as it's contemporaries, but the claim that there is no demand is a farse.