I don't think I respect the people in my life
Why the loss of respect for them?
People don't bother to voice their opinion to me anymore and they seem to be very passive.
I can see that some people are just hard to like and respect. If that's how you feel, then limit your interactions with them.
I just don't see the point in being passive.
Well people might be passive because they don't want to fight with you. Or they could simply have no opinion about a subject. Not everything needs to be a fight or argument.