Acceptance of Others Equals Acceptance of Self?

After receiving a message with the phrase "Acceptance of Others is Acceptance of Self," I started to seriously question it. Why is judgment considered a negative trait? Why is blind acceptance considered a positive trait? Isn't judgment a necessary activity for survival? Isn't the ability to observe and judge the world around us part of our humanity? I personally dismiss the idea that I should accept all others. However, I question myself and what beliefs cause me to dismiss someone. Please, convince me that I'm wrong to glorify judgment.