Not to strain the upper limit for off-topic posts for this thread (too much), but seriously, I don't understand how anyone can honestly, and rationally disagree with ANY of that.

It's just common fucking sense.
Being insulted or threatened on the internet, while maybe serious for psychologically vulnerable people, is nowhere close to a comparable situation in real life, where you'd need both muscles and strong enough personality in order to brush that off.
Having someone openly, and bluntly disregard you as a person, or disrespect your opinion, religion or whatever, is way more tolerable on the web, than in real life.
Being humiliated, or cornered, by doing something wrong, or saying something stupid, or saying something potentially correct but too hard (for you) to back up at the spot, can be quite an issue in real life, but is almost none on the internet.

There is no immediacy of reaction and response on the internet (not even in a chatroom), where a wrong expression can already be read as a sign of weakness, or defeat, no way for someone to use their "imposing personality" in order to influence the course of a conversation, no sensation of being "exposed" and having to act adequately in real time, and always time to digest and reconsider.

Not to say that anonymous internet communication doesn't show very comparable patterns to real-life behavior, as well as emotions accompanying it, but it's all bleaker and less powerful.

To give you an example (and get back to the topic), if I met a prequel defender in real life, I probably wouldn't care much that he is one, except maybe a little bit for the few minutes, and would only get involved in some kind of "passionate" discussion if we really knew each other very well, and spent some time talking about stupid bullshit at a coffee.
Because there's nothing more pathetic than two people who don't know each other starting to bash in each others' skulls because of some stupid movie (in real life).

I also don't start arguments about the immorality of the Christian doctrine if I get invited to some liturgy by friends. I may listen to the stupid-ass sermon and be murdering sweet, innocent puppies in my head, but a lot of social conditions will have to be met before I start arguing at all - and some more for this argument to get to an actually honest, and blunt level.

On the internet? I go to some youtube video, see some stupid opinions, and just post the fucking rebuttals. End of story.

If you can't "agree" that any of that makes complete sense, then hey, you know, don't eat the fish ;)