Okay so you replied about gun violence and it made sense, then the first reply you got you felt the need to say the person "supports school shootings" as a pretty infantile simplification of the subject, being for gun rights does not at all ,ever mean someone is for the death of others.

You then told them what they were saying is idiotic because they didn't accent your labels how you want them.

Then you simply dismiss what they say by claiming they're being obtuse.

I'm sorry mate but that isn't discussion, that's shitting on someone coz they don't agree with you and not allowing any fair counterpoint to be acknowledged.

While your behavior isn't outwardly hostile it is not condusive to discussion, it's just you saying something then calling people who reply idiots because they don't agree with you and then saying they support teen murders, it's just asking for trouble.