General Discussion: Mesmerist

[Raven Verres]

Perhaps this has come up before, but I find it relevant now in a game I'm currently in and there seems to be a lot of confusion about it.

The Mesmerist ability Psychic Inception calls out the ability to overcome Immunity to mind affecting spells 50% of the time.

Psychic Inception:

The hypnotic stare and its penalty can affect creatures that are mindless or immune to mind-affecting effects (such as an undead or vermin). The mesmerist can also partially affect such a creature with his mind-affecting spells and abilities if it’s under the effect of his hypnotic stare; it gains a +2 bonus on its saving throw (if any), and if affected, it still has a 50% chance each round of ignoring the effect. Ignoring the effect doesn’t end the effect, but does allow the creature to act normally for that round.

Meanwhile the Protection from Evil/Chaos/Good/Law spells suppress active spells/effects and grant Immunity to new attempts from something of that alignment attempting to take control of you.
"While under the effects of this spell, the target is immune to any new attempts to possess or exercise mental control over the target. "

Does the Psychic Inception ability overcome the Immunity granted by Protection spells or is it meant only to be an inherent immunity granted by being specific creature types? I.E. Undead, Constructs, Plants, and various other subtypes.
Also, since it's potentially relevant, does this ability overcome a Paladin's Auras of Resolve which grants Immunity to charm spells/spell like abilities, and Righteousness which grants Immunity to Compulsion spells/spell like abilities?
Would it overcome an Unbreakable Fighter's Unbreakable Mind ability which grants Immunity to all mind-affecting effects?

Or, I suppose the third option is that both sides work. The Protection spells grant their usual suppression and then immunity, which can then be overcome by the Psychic Inception ability, albeit only 50% of the time.