This is giving a whole new perspective on the "comrades' bones" line. Though I'd be surprised if his only goal was to have his dead family lie in Japanese soil. I thought his true goal would be to plunge Japan into endless war, out of spite for the world.
For more info about Shiraishi's comment about Tsurumi being odd in Karafuto, check out this link: https://goldenkamuyhunting.tumblr.com/post/613878699357519872/quick-outline-of-the-changes-in-golden-kamuy-vol where it says chap 211. The volume version added a lot more detail that the magazine version didn't have, and you get to see Tsurumi lose his temper with Asirpa, mention her father, and suffer severe leakage.
Anyway, thanks for the TL!