It is important.
To love one everyone is the goal. the people who live right next door, at work even the ones who do you wrong. What even the people who do me wrong? When God tells us to "love one another." He is saying it a very broad way. This is very challenging because it is everyday you can go on to the internet and get trolled by someone who hides behind a computer and cyber bullies. How do you I love that person? God helps us love those types of people when we let Him.
Ask God pray to be able to see the people who it is incredibly hard to love the same way He sees them. Looking past what is directly in front you, don't judge them. Open up to the possibility to why those individuals are may be acting the way they are. Some people make it the mission in life to me mean and when one encounters people like that kill them with kindness. If it is a game they play, play the game and kill them with kindness, game over kindness and love wins.
34 “A new command I give you: Love one another. As I have loved you, so you must love one another. 35 By this everyone will know that you are my disciples, if you love one another.”