Frankly, this has all been addressed in previous posts from this account, including the (now defunct) ties to white nationalism, and the wimpy liberalism the "movement" (which isn't real) represents in the modern day. It has been discussed how the concept of "Cascadia" is, in fact, a useful rhetorical tool in the current moment, to pipeline progressive liberals into discussions that don't center around United States politics (with a layer of irony applied).
It's fine if you didn't read those posts, but this disingenuous and bad-faith approach to the discussion is incredibly uncomradely and offensive. I suggest that you offer people, especially with an @hexbear account, an opportunity to address concerns you may have in the future, instead of making assumptions. You don't have to agree with the conclusions, but I think you'll find very little that's incompatible with the Hexbear consensus.
Edit: link for your convenience, the NTI is addressed at the bottom of the post. You don't have to agree with it. https://hexbear.net/comment/5576727