What everyone has in common these days is a device in their hand.  People are corralled into echo chambers by algorithms.  Sorted into piles.  What they can't see is the invisible cage placed around them.  They only see massive approval ratings on whatever is being presented.  That's been going on for long enough that opposition nowadays comes standard with shock value.  Thinking differently and expressing those views after managing to escape the confines of your own prison of ideas is much like stumbling into a new tribe that hasn't seen other people before, and now they're hearing a new language they don't understand combined with natural tendencies of becoming aggressively defensive.