>the “online disinhibition effect” is what enables your mild-mannered neighbour to become a hate-spewing bigot on social media
It's complicated. The fear of enemies keeps our 'ego persona' firmly in charge like a wartime leader. Because we identify with this persona we therefore unconsciously seek out people to hate in order to feel safe. Because open hatred isn't socially acceptable we designate the target group a 'hate group'. It's then OK to hate them because they're the real haters! And so these opposing groups create and sustain one another, making the participants feel safe and all the while making the world decidedly less safe.