"I don't understand why other people don't think like me" says more about one's lack of curiosity or understanding than about the people mentioned. One doesn't have to agree with someone else to understand what underpins their diverging opinion. Worse, it may show one's assuming there's only One True Way of thinking about something which increases one's sensibility to propaganda.
No matter what you believe in, staying curious about why other people think differently allows you to understand exactly why you disagree beyond a knee-jerk reaction and makes you more able to change your own opinions if the reasons for them change.