They're very similar, actually. Both
Notch and
Doug Tennapel are transphobic, homophobic, sexist,
and racist far right election-denying conspiracy theorists, with the major difference being that while Notch is a staunch atheist, Tennapel is instead a
militant Christian fundamentalist who uses his religious views to attempt to justify his bigotry, all while also being a regular contributor to Breitbart.
And to add to it, while Notch has no ownership whatsoever over Minecraft any longer after it got purchased by Microsoft, Doug still seemingly has a stake in Earthworm Jim: the failed Intellivision Amico was going to have an Earthworm Jim game exclusively made for it, and made a point out of having Doug Tennapel be involved in it again.
So in many ways, he's very similar to Notch, but is arguably even worse, as he has all the same terrible qualities Notch has and then further expands the list, alongside still being involved in the property itself.
There's also the added issue that Doug has a history of letting his views be shown
in the franchise itself. In Earthworm Jim, there's an antagonist known as Professor Monkey-for-a-Head who's meant to be a Take That at the concept of evolution, considering Doug himself is a hardcore new earth creationist who decries the concept of evolution as an attack on Christianity.
And as someone who really liked Catscratch as a kid when it aired on Nickelodeon, it sucks because
guess who made that one lol.
So yeah, that's a quick rundown for anyone who might not be familiar with the guy. It sucks.