They were not actually fake. In the most popular one, it was footage of the Sun going over 360 degrees around, where the last few degrees just started from the beginning again, so it was a loop.
Now what FEers should do is not "debunk" the looped 360th degree, but focus on the other 359 degrees instead. Because that's 24h already.
Here's a totally different video:
And here's a 360° version of it (pan to look around):
I mean, you can keep denying it, because it's easier for you FE folks if you don't have to explain it, but an explanation for Sun on the complete ice ring would still be quite interesting to hear.
Well, the endless sun in both the arctic and Antarctic in summer is always in sunset mode, wouldn't that be correct? It's never full sun there, even in summer. I can see how that would lend itself to the idea of a ball earth, but it could work on a flat earth too, since on a flat earth, the sun still moves above and around the entirety of the earth in 24 hours, and could show a sunset mode in both the arctic and Antarctic, even though the Antarctic surrounds the earth.