Though I do understand that I'm not perfect in this front, and have made plenty of mistakes, I do generally try to keep courteous and treat others with respect.
Of course, it can be expecially hard when I start growing frustrated often when an exchange perspectives cannot be met as it were. Where perhaps I'm not understanding the perspective of someone else, or they are not understanding my perspective. Perhaps even it could simply be that we're seeing the exact same thing in two different ways. Sometimes it feels like it may be even a bit of all of this.
I will agree general courtesy and respect is something that seems to be dying in many circles, often as well the mentality of "Us vs Them" becoming more prevalent. With bickering, arguing, and an unwilling to listen or compromise. With so many people becoming opinionated, quick to anger or offense, and then disrespectful or rude to those who disagree with them.