What if G1=BEP and G2=GEP and discussing outgroup irrationality is much easier than discussing ingroup irrationality? Now suppose G1 is significantly larger than G2, and perhaps even that discussing G1 is more relevant to G2 winning* and discussing G2 is more relevant to G1 winning. How is the situation going to look like for a member of G2 who's visiting G1? How about if you mix the groups a bit? Is it wrong?
if you have a better suggestion for how to talk about it I'm listening.
You connotationally implied the behaviour you described to be wrong. Can you denotationally do that?
*rationality is winning
How is the situation going to look like for a member of G2 who's visiting G1?
I expect a typical G2/GEP visiting a G1/BEP community in the scenario you describe, listening to the BEPs differentially characterizing GEPs as irrational in negative-value-laden ways, will feel excluded and unwelcome and quite possibly end up considering the BEP majority a threat to their ongoing wellbeing.
How about if you mix the groups a bit?
I assume you mean, what if G1 is mostly BEPs but has some GEPs as well? I expect most of G1's GEP minority to react like the G2/GE...
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.