If we, instead of criticizing others, use that time to look at our own flaws, we'll be so busy working on ourselves that we won't have time to even look at others. Devanand said this.
I remember reading that when I first started taking yoga classes. Applying it has been freeing. We have all the right to disagree, but also to respect, because everyone is free to be. And the universe is big enough for all kinds of people. Of course there will be those you like and those you dislike, and you will, likewise, be liked by some and not liked by some others. And that's ok and not surprising, because we already know that, and my happiness (etc.) does not depend on pleasing them or being pleased by them, because it's impossible to please everyone or be pleased by everyone. My happiness (etc.) depends on whom?
I like a Hindu proverb that says that the point of competition is not to be better than anyone else, but to be better than yourself left over from yesterday. How I feel and go about my life depends on me.