A lot of it is you misreading Tim O'Neill's points, and responding so broadly that you are strawmanning his point. For example, you write just above:
O'Neill knows things but integrates them poorly into a theory because of ideological biases. What I call the “negationists” thesis is to deny that there was a religious conflict between the Church and Galileo and to try to present it as a scientific conflict.
Did O'Neill ever deny that there was a religious conflict there? I'll quote him from
an earlier post:
This acknowledges incidences of conflict between science and religion (e.g. elements of the Galileo Affair or some of the reaction to Darwin), but shows that the relationship between religion and science can't be reduced to simplistic black-and-white generalisations about either wholesale "conflict"/"retardation" or "harmony"/"encouragement". History isn't that simple.
Can you quote O'Neill to the effect that he denies that there was a religious conflict between the Church and Galileo, please?
I have more, but lets start with that one.
To say what O'Neill thinks about the conflict between Galileo and the Church is difficult because he answered my questions with insults and because he have been directed mainly to Hypatia and Copernicus.
I will talk about the authors he cited as sources, from whom I have read some things. For example, David C. Lindberg: “Galileo, the Church and the Cosmos" in
When Science and Christianity Meet, edited by David C. Lindberg and Ronald L. Numbers.
To say that the conflict between Galileo and the Church had many facets is not to say anything. Everyone recognizes that. If that is the myth they want to dismantle, it is a myth they have invented or which refers to authors who are not relevant in the history of science, such as Sam Harris or Richard Dawkins. What negationists try to do is hide the science-religion conflict within the others, making it irrelevant. This is a fallacy because the science-religion conflict is the dominant one and the one that had had the most consequences for the future.
I mentioned in a previous comment Lindberg's line of argument, which coincides with Numbers. It is full of fallacies. For example: that the conflict would not have taken place had it not been for Galileo's obstinacy and bad character. In other words, it was due to something accidental.
Also that the conflict would not have taken place if Galileo had not provoked it by mentioning that the Bible could not oppose science and had to be reinterpreted when there was conflict.
This is false for several reasons. The problem arose naturally. It had already been alluded to by some ecclesiastical authority - Bellarmino I think I remember. Galileo was deceived by this and believed that his proposal was going to be supported.
Furthermore the conflict with the heliocentric theory had already been mentioned by Luther and had been picked up in the indictment against Giordano Bruno. If he slept for years, it is because, unlike Bruno, Copernicus was known by few people "and even less read" -- these are Lindberg's words --, because he presented a model with little experimental evidence and because he had been tempered by Osiander's prologue, reducing it to a mere hypothesis.
All this implies that the problem was posed in a natural way. It was a conflict that had to break out sooner or later if science wanted to free itself from ecclesiastical authority. It is absurd to pretend that the cause of the conflict is an accidental event when it has spread over the centuries.
Another argument by Lindberg and Numbers: The conflict was not between science and religion, but between scientists. Lindberg maintains the idea that there is no conflict between ideas, but between people (again the accidental). This idea is absurd because there would be no conflict between people - in this case, at least - if they did not have contrary ideas. In any case, Lindberg and Numbers' idea tries to remove the religious authority from the conflict once again. But it is based on an important error: the equation of Aristotelian medieval science with modern science. Lindberg acknowledges that they are not the same, but then forgets to draw conclusions. What negationists hide is that Aristotelian science was not something independent of the church, but was a way of exercising its totalitarian power. Its methods and objectives were decided by its submission to theological power. That is why medieval scientists were unable to develop a method, such as the hypothetico-deductive one, which implied freedom of research. That is why, in the conflict with Galileo, their main arguments were the subjection to the authority of Aristotle and the Bible (Lindberg acknowledges this, but here he does not draw the right conclusions either).
There are more fallacies in the denialist position, but almost all are based on one: they ignore that the conflict between religion and science was inevitable and was due to the fact that the Church was a totalitarian power. That is to say, that it sought a total dominion - and they achieved it in good part for some centuries - of the whole life of its subjects, from their daily practices to the systems of ideas that were developed under its dominion. Such power, as demonstrated in other cases of totalitarianism, is incompatible with the development of a science based on reason and experience.
If O'Neill agreed with these objections, he could have said so. I would have liked to agree with him. But nothing would have happened if we had not agreed. But since he got nervous and slipped out of the debate, just when it was becoming more interesting, we cannot known. If you, GDon, know something or want continue making objections, I would be delighted. You can see that I am interested in the subject.