There is nothing at all inconsistent in my views. You are misrepresenting them.
This is the context of a few Fathers teaching the earth is flat. The traditional Catholic flat earth site is able to come up with four (as I recall) Fathers. There was no consensus among the Fathers on this. This is not only the understanding of historians, but the teaching of St. John Damascene. When there is no consensus there is no reason to consider it part of Church teaching. This is the reason that I dismiss the opinions of those few Fathers who taught flat earth. It has nothing to do with advancements in science.
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I have never claimed that spherical earth was "Catholic teaching" in the sense of a Church teaching concerning faith. I have been saying that historically Catholics taught and believed this, as a matter of science, ever since St. Bede, with virtually no exceptions. And that is what I believe too. The medieval case for spherical earth still seems like good science to me. And I want to be on the same side as Doctors of the Church, not people like Dubay and Rowbotham.
With regard to the first statement, there was no consensus one way or another among the Fathers about the shape of the earth. That leaves it an open question. Nevertheless, I recall your arguing at one point (from Leo XIII) that even if there WERE a consensus among the Fathers about something scientific, well, since it's science, it could be mistaken. But in either case, the point is that this is not a matter of doctrine, but of science ... except perhaps some details, like the firmament, which all the Fathers unequivocally believed in, since it's clearly taught in Sacred Scripture. Do you believe that there's a solid firmament above the earth?
You did refer to spherical earth as Catholic teaching, but then added the qualification that it's not "dogmatic". My point is that it's not Catholic teaching in any sense, dogmatic or otherwise. Historically, SOME Catholics believed this. Even above you say that Catholics "taught" this. No, they didn't "teach" this. Xavier here does the same thing, use the term "teach" loosely. But when we speak of Catholic "teaching", that has a different sense than if, say, a Catholic were "teaching" a science class in school vs. Catholic "teaching" in the strict sense, so it's important to distinguish.
I want to be on the side of TRUTH, God's truth. I want to know how God created our world and what He created. You falsely frame this debate as "Doctors" vs. Dubay. This isn't just Dubay and Rowbotham. I actually have a collection of several dozen books (I acquired in PDF form) of scientists arguing that the earth is flat. It's not to be "against" the Doctors to say that their knowledge of science was mistaken. St. Thomas was mistaken based on his incorrect scientific perspective regarding the Immaculate Conception. Fathers and Doctors (except perhaps for St. Robert Bellarmine) did not have telescopes or other scientific instruments with which to conduct experiments. Most likely the Doctors were following Aristotle, due to their respect for him, but Aristotle's major proof for the spherical earth was boats disappearing bottom-up over the "horizon" when that is clearly shown to be mistaken with simple cameras today like the P900. When those boats "disappear" you need simply zoom in on them to bring them back into full view. This technology is now available to the "masses" and THAT is the biggest reason for the resurgence of Flat Earth. Most people start looking at the subjet with skepticism, but when they actually see the evidence, they're almost forced to come to that conclusion. Were it not for the actual evidence, 95% of people who are now Flat Earthers would have rejected the idea as lunacy, given the programming we've been subjected to.
Overall, my reasons for believing (in my mind, knowing) that the earth is flat are scientific ... except the parts that Sacred Scripture clearly teaches. Holy Spirit is in fact the author of Scripture, and He clearly tells us that there's a firmament above the planet. He also teaches us that God made the sun and the moon AFTER He made the earth and after He made light. So this invalidates most of modern science in general. He teaches us that God made man from the dust of the earth ... about 6,000 years ago. It can be debated whether the rest of creation took exactly 7 days or were more 7 periods of time or were instant, but anyone who holds that human beings have been around for hundreds of thousands of years, even millions of years, they are heretics, rejecting the inerrancy of Scripture. Do you believe that or do you try to leverage Leo XIII to claim that human beings have been around much longer because Scripture didn't "mean" to teach us about science?