If a spell, effect, feat, ability, etc that applies the Confused Condition to a target is mind-affecting, it is described as such in its text (i.e. "This is a mind-affecting effect"). However, the Confused Condition text itself does not say it is mind-affecting specifically and there are a few things that can apply this Condition that are not said to be mind-affecting.
Nightmare Vapor (poison) for one.
Madness Variant Channel ability for another.
Both of these apply the Confused Condition, but neither make any mention of being mind-affecting. The first is a Poison. The second is a Harmful channel.
So what happens when a Vermin inhales Nightmare Vapor and fails its save? It is immune to mind-affecting effects, but not to poison effects. So does it sufferer Wisdom damage and the Confused condition? Or just the Wisdom damage?
Same question with performing a Harmful Madness variant channel on anything living or undead.
Malfunction is the superior version of Sabotage Construct.
I'm not aware of any specific ruling on the issue. Though insects don't have lungs they extract oxygen through tiny holes in their body. I think you would be well justified in ruling nightmare vapour doesn't effect them.
As for constructs and Harmful madness, there is precedent for golems going crazy - the flesh golem. Though again immune to the nightmare vapour.
I don't think conditions are ever specified as "mind effecting" or otherwise. The thing that causes the condition specifies the type of effect.
I'm not aware of any specific ruling on the issue. Though insects don't have lungs they extract oxygen through tiny holes in their body.
This is true, although as Vermin are spelled out as breathing, eating, and sleeping, I'd assume the different Poison deliveries all work on them.
I don't think conditions are ever specified as "mind effecting" or otherwise. The thing that causes the condition specifies the type of effect.
This was my thinking also. This might be intentional by the Devs, so that they don't run into problems where a rule says you can do X or Y to a Construct or Undead while the Creature Traits specifically say that you can't. It leaves them wiggle room for the creation of various feats, abilities, spells, etc.