Regarding your explanation of your use of the word 'one':
As a pronoun it should stand in for the words 'a person' and your sentence was related to political parties.
Did you really want your sentence to be interpreted thus:
"Wow your family has really added wonderful value to our society. Your right its free society and you shouldn't be judged by your political choices there's good in each party and it doesn't make you evil if you chose between a person or the other ."