“humans tend to be generally kinder to friends and family than strangers.”
Name a creature that isn’t. It seems to be a survival characteristic.
Ron Reagan Jr?
The Left's agenda has always been about abolishing human nature and to re-engineer society to fit their ideology, whether it's the "New Soviet Man" or Mao's "Cultural Revolution." However, those early attempts were so crude and ham-fisted that they failed.
Today's elites want globalism. To do that, they need to erase people's pride in their nation, culture, and heritage. Today's elites want multiculturalism - to achieve that, they need to remove our natural instinctive affinity for people who are similar to ourselves and our healthy distrust to those who are dissimilar. The elites have also decided that the sexes are interchangeable, so people's emotions and sexuality need to be re-engineered to fit the ideology of feminists, militant homosexuals, and now the "transgender" advocates.
Today's elite is trying to achieve all this not with a boot on your neck and a gun's muzzle pointed at your face (at least not most of the time) but through mass entertainment, lots of talk about "love" and "tolerance" and eventually mind-numbing happy pills.