The demand you've observed is simply you making up generalized arguments for those people you disagree with. Hence, strawmanning.
If you think the premise is so unbelievable that I must be deliberately constructing unrealistic examples to influence a conversation online, I'll know how to regard you in the future. I have literally, personally, observed individuals upset that Titanfall isn't available on Steam because they don't like dealing with DRM, and because they don't want Origin to become a monopoly. I was among the first buyers on Steam, because it was mandated that I was because I wanted to play my retail copy of Half-life 2. The client was bloated, unstable, and didn't add meaningful features. This state of things persisted for some time. I didn't boycott Half-life 2 because of it. That is my outlook on all this. When I say I've observed the people I've characterized, I'm talking about among in-person friends. That being said, if you think I'm being too generalized, I can cite examples from this thread.
This is an example of a perfectly rational set of reasons to be disappointed by the Origin decision. As is
this.
This is the sort of arbitrary Steam-cheering that plants the platform's merit simply on it being popular.
This is someone who is specifically basing the merit of Steam on it being a de-facto monopoly, to the point where even an equivalent platform from any other company isn't acceptable.
Here's the same person explaining why competition for Steam is a bad thing.
Here is someone complaining about the DRM inherent to Origin, and why that's their reason for not buying Titanfall unless it were available on Steam.
This is an example of why using Origin as the underlying client has some distinct merit to it.
Many of these people's points are that sometimes a monopoly happens because the product or service is simply better than alternatives, and that's something I'd agree with, but I've also cited people who who say specifically why even if the product/service were exactly as good, it would be unacceptable other than with Steam. I think things like Twitch integration, standardized 24-hour return periods for digital purchases and a smaller footprint for the client are merits to Origin. Those return policies would be better for buyers if they became a wider point of competition. It's probably worth mentioning that I don't use Origin with any regularity. I'm coming at this academically.
I'm sorry you think there's no rational basis for calling out a viewpoint rejecting DRM and potential monopolies as part of the reason to boycott a game they'd otherwise want to play, when the preferred platform is necessarily DRM and represents an effective monopoly. Let me just remind you that the
original point of contention you had with me was pointing out that most people would see irony in those conflicting views and actions.