How does bringing games like the older Halos or Cuphead to Switch make Xbox gamers second class citizens?

I would like to know this myself, because by that logic, that would make PC second class citizens as well. 

Actually if Microsoft were any smart they shouldn't have just ported any of their games on platforms that they didn't own such as the Switch ...

Instead they should've just released the games through their XCloud service to make it available for play on the Switch so that the reward of a full software copy ownership should've remained exclusively for customers on platforms they owned but it's as STAGE (I don't agree with him very often as is) said it, "Xbox gamers are second glass citizens to the brand they built" indeed rings more true than ever ...

For once, only Nintendo realizes how much exclusivity matters as an advantage since the others are dropping the ball ...

There have been rumblings that some version of Master Chief Collection is coming to Switch for months on Resetera - some of it based on a reliable source. As much of as a curveball as it may be, seeing Halo on Switch isn't super far-fetched at this point.

PC doesn't have a platform holder so it doesn't make sense to throw there.

What he is saying is that MS gave games to be put on Switch, but didn't got any game to put on X1. MS may be getting money from doing it, but Xbox gamers aren't getting anything from it. That is why he is infering they are threating their fanbase as second class citizens.

X has it;'s own 1st party games though, that still aren't on other consoles. They run a part of the PC space, albeit much smaller than well over a decade ago, but it's still a part of a market they operate in. 

I still find it odd to believe that X players are regarded as second class, because of the logic involved. 

I can't fathom anybody buying an Xbox to play Halo 1 at this point. I don't see the harm in releasing it on the Switch. I would buy it day 1 without thinking twice. Same with Ori.

Well at least you aren't denying Xbox players receive 0 benefit from this move from MS.

well, I mean PC has it's share of games that are exclusive for a time, but find their way to consoles, and I've no qualms with more people being able to play the games.

Xbox players just get what they are given by MS, but that's down to what they think their players want.

That being said, next gen, we'll see how much output MS is willing to produce with all the studios they've acquired over the the past half year. 

Agreed, from Microsoft's perspective, they've little reason not to do this, especially if they make it only available through Gamepass or their upcoming streaming service, though obviously I'd prefer it physical myself. Man oh man, can you imagine if we got Master Chief for Smash alongside an announcement of a physical release of the Master Chief Collection? Even if they do release 1-5 on their services and make their services available on Switch, they should still make a physical Switch version for any of the games that can manage a decent Switch port. Again, I'd imagine MCC would be doable. And can you imagine if they also made MCC's multiplayer only available through a Nintendo Switch compatible version of Xbox Live? We could have a genuinely great online multiplayer experience on a Nintendo system! In fact, I bet this is exactly how they'd do it too, as they wouldn't want Nintendo's shitty online service associated with the Halo brand.