Years ago, Dale Carnegie wrote that "Any fool can criticize, condemn and complain—and most fools do. But it takes character and self-control to be understanding and forgiving."
This reminds me of what my mom (and perhaps yours, too) would often quip: "If you don't have anything good or nice to say, keep your mouth closed."
There are some hot button topics that just can't be solved by arguing for or against them. Many times what I hear someone saying in anger or passion is, "Listen to me. I am right. I know better. I will not budge no matter what you say."
Other gems from Carnegie's pen are:
The only way to get the best of an argument is to avoid it.
Show respect for the other person’s opinions. Never say, “You’re wrong.”
If you are wrong, admit it quickly and emphatically.
Let's try and live "higher" and lighter, choosing a path of peace and acceptance (and sometimes of loving tolerance) than one that is antagonistic or mean-spirited. Life is too short to be upset all the time or even for a few moments.