No, not always. What do you think Jesus meant when he spoke of eating his flesh?
It is symbolism for making commitment to Him.
Everyone is of the world. This is where we were born, it’s where we live, and it’s where all of us are going to die. Rather than making doctrines that divide people, I think it’s high time people learned how to respect one another and their right to believe as they see fit.
Jesus teachings are for His followers who wants to inherit His kingdom. If we don't abandon this life, we will not be born again.
As long as they are not harming others. If they are harming other people, animals, or the planet, then they are wrong. IMO.
Jesus standard is not the same as the world. It is super high.
His followers are working for God's kingdom.