It's hard to explain to Ts what ticks us off about these kinds of arguments.
I myself don't know exactly why, but I can guess, and I'll try to lay it down in short points:
1. INFPs are perceptive to emotions; we don't stop at the mere *words* you're saying; we'll try to understand where you're coming from.
2. If you present your opinion or argument with a tone of "why can't you just accept the facts?", we perceive (correctly, I think) that you have no respect for our opinion.
3. INFPs hate nothing more than someone disrespecting our thoughts and emotions.
We can be quite a tolerant bunch, so we won't get super mad at you if that happens once or twice. But if you consistently behave that way, you'll piss us off, and we'll despise you for it.
Like I said it's not a matter of wording. Some people think they can fool us by wording their argument carefully as to not sound offending, but that attempt is usually futile; it's destined to fail.
Actually, it's even worse: if you word your argument carefully, we find it more offensive, and you'll piss us off even more. We will perceive (again, probably correctly so) that you not only disrespect our opinion, but you think so lowly of us that you can't just have a normal conversation.
I'd only word an argument carefully in two cases: it's against the mainstream and likely to receive a lot of quick bashing, or it's aimed at people who I'd consider crazy.
So, not only you show disrespect, but you also treat us like we don't deserve any respect because we're just that crazy.