“Social species” is a generalisation. As such, it’s not a good argument against a more particular statement. (Different species aren’t born with an axiom of solitary/social which would then produce more particular consequences, but particular behaviours are imperfectly generalised into a taxonomy. The specific here has a higher weight than the general.)

What I see in online discussions is people repeating this mantra, because it agrees with their own inner experience. But it’s unnecessary to force this onto others that this doesn’t resonate with as much, invalidating their experiences.