An argument should never be about trying to change to other side's view but it should be to understand and relate to them.

It’s never pointless. Even the ones who don’t admit, they will eventually think about it, they might and might not change their mind and attitude.

Conversations / discussions are one thing. Arguments / debates are another. Some people enjoy a good argument / debate, it seems. Each to their own, I guess.

No. I think it's my divine right to help brothers and sisters see a wider scope. Feel free to look at my responses to QuestionWeaver a few short hours ago.

Yes, because the opposite thinks they are right too. There is never a happy medium, or meeting of the minds.

With the aforementioned three, there is always scope to learn; with the squabble and the bickering there is only rage.

it might seem pointless but its better than having no dialogue between differing points of view.

Anything controversial or just plain wrong needs to be openly discussed.
Yes you'll get insults and spam from trolls in whose interest it is to propel their POV. But as with physical vandalism, if you don't challenge it, they win.

Yes. It’s just to facilitate a circle jerk most of the time.