and hundreds of reasons to think it's not.
And yet you haven't mentioned one which stands up to any scrutiny at all.
If I declare something silly, for example, "The earth is round" then plug my ears and scream every time someone brings up evidence that contradicts my predetermined world-view, would you think I could say with integrity that there is no evidence that, "stands up to any scrutiny at all"?
It's honestly silly that we are still talking about this in 2022.
Well, agreed there. The idea that the ISS is anchored to the North Pole is obviously ludicrous. How long is this tether supposed to be? What material is it made of which could be strong enough at that length? Why can't it be observed? Surely people close to the Arctic Circle would be able to see it? You have made an argument from incredulity and then presented an alternative idea which is (in my view although it is admittedly subjective) significantly more incredible and provided zero evidence for it.
I can honestly say that I don't know the answers to your questions. However, that is a good thing because rather than Googling searching something like "What is the ISS wingspan" then running back here and blindly parroting the answer after giving myself a "well-earned" pat-on-the-back for my extensive "research", I can say that I do not know and it's an area for further study.