It kills my how underrated Leiji Matsumoto is in the west (well, the USA and anglosphere mostly, considering that Harlock is a legend in the francophone sphere, along with shit like Queen Millennia in Germany and shows in Italy).
I've said similar before. He's one of the classics, which is the very reason they don't know him. Consider that a good amount if not a majority haven't seen ANY series from the 1970s, and these tended to have certain themes that are different from what a modern audience is used to, even if some of them are akin to blueprints for what followed. It feels anachronistic, take for example Gun Frontier, or Endless Odyssey. These while being modern anime still remain old-fashioned. Only a certain type of person is attracted to that, very much the classic otaku.
>If they ever carve a Mount Rushmore of anime, it will have Tezuka, Miyazaki, and Matsumoto for sure