I have found in the past that every time I refute one of their arguments, flat earthers simply ignore that particular video/argument and simply move on to the next one.
It takes time to present the arguments/refutations, and if there is no hope of achieving anything, then we may as well "bugger off" like one chicken just suggested. And that's fine with me, as long as everyone else "buggers off" too.
Btw, a flat or round earth is absolutely not part of my Faith, on the contrary, it is a distraction, and one that the devil is all too happy to use in order to divide Traditional Catholics.
Well your experience with flat earthers is limited then. Sometimes certain scientific experiments can lead to conclusive results, other times to inconclusive results. It's the nature of science.
In the case of disproving the globe, some experiments may lead to an ambiguous result, by which I mean, there is some aspect of the experiment which is not clearly accounted for, or some explanation that can be used which could work, even if rare. But the videos I refer to do not seem to have any of them.
The first person to come up with the globe was pythagoras who was, it is well known, an occultist. Prior to that and for a very long time after, everyone knew what the earth was. The error of the globe crept in slowly to the Church and had consumed almost everything by the 20th century. It is still an error.