Answer:

because even it we have the right to voice out our thoughts, we must respect each other. It's okay to voice out our thoughts but we have to be more sensitive and careful on what our saying because we might hurt anybody's feelings. Discrimination can lead to anxiety, low self esteem and depression to a person so we better watch out and choose the right and appropriate words. Kindness is still the best expression of respect and love. :)

just my opinion tho :)