Good post! Even Greek society split "love" into two kinds: Romantic love and "agape," or universal/brotherly love:
https://en.wikipedia.org/wiki/Agape
Funny how modern English doesn't have language to express this dualism - similar to the concepts of tatamae and honne in Japan. It's totally possible to "love" mankind as a whole while loathing individuals - the New Age notion that "love and light" has to be extended to all individuals is, as you note, pure bunk at best and harmful at worst.
Interesting. Yeah, even in Norway we have a word for brotherly love so to speak. "Glad i deg". The closest word in English must be "I care for you" . "Elsker deg" is "Love you" which is very very strong in Norwegian. Something you only say to certain people, and for many very hard to say. But "glad i deg/care for you" is not as strong. It means love, but more casually thrown around - yet, not something you say to your buddy while you fistpump.