> which means Minecraft is a rogue-like
No, it means you don't understand what a roguelike is. (and since you've been fooled, I don't blame you)
> rogue-like was effectively hijacked from the beginning.
Not at all. Rogue came out around 1980, and birthed the genre almost immediately. Hack was released in 1982. NetHack in 1987. Angband in 1990. Ancient Domains of Mystery in 1994. Linley's Dungeon Crawl in 1997. DoomRL since 2002. In 2008, Dungeon Crawl Stone Soup ranked as the #1 roguelike. Brogue started in 2009. Caves of Qud in 2015. And Cogmind has been in development before 2017. These are just the ones I know about, but they clearly represent a descent from Rogue. Play any of them and it's obvious what they have in common - not just randomization and permadeath but also turn-based tactics.
If my memory serves me right, it was Spelunky in 2008 that was really the first game to "borrow concepts from roguelikes" and place them in a decidedly non-roguelike context. Note that Spelunky never advertized itself as a roguelike. It is now tagged as such by users on Steam, but even its creator knew it wasn't in the genre.
I don't know who or why was inspired to start misusing the term roguelike so heavily since then, but it's become a plague.