We would. I try. I sometimes fail. I have been verbally attacked for my views on the existence of God, the teachings of the Catholic Church, my views on Gun Control, and my views on unattributed words being called "News reports." I have been involved in a number of online forums over the years and I have learned a few things.
1. There are people out there who use multiple accounts to argue with themselves, so they can keep the argument going.
2. There are some who have no interest in discussing anything. They only want to make their points.
3. There are some who have nothing else to do and expect you to spend hours debating them.
4. On Hub Pages, there are a fair size group who show up in comment sections and on the answers page, who have never written a single hub nor put any information on their profile page to show where they might have some expertise to talk about the various subjects.
The issues I raise are not unique to online debating. My mother had four brothers, my uncles. My grandmother, (mother's mother) lived with us so the uncles would drop in to check on things, without notice. The four of them could and would argue about anything and everything. If this forum had existed back then, they would be all over the place and not took kind about asserting that they were right and all others were wrong. Some people just cannot discuss things in a rational manner.
I am sure there are some who think that about me.
I support your concept. I do no know if we can ever achieve it.