when people hate on others for speaking their mind

i feel horrible when i see people speak their minds, being simply who they are and not being afraid to be like that, and get absolutely shut down by everyone around them. it isnt fair to that person, and i do not like it. it hurts me when i see others getting upset because of it. they have a right to say what they want, and if it isnt something that you agree with, then you need to just let it go, not try and bash or belittle or be rude to that person. show some respect for the human species, please and thank you.