Loving parents, your siblings, your spouses, friends, one’s own race, like-minded religious-comrades etc… = “loving those who love you”.
Go beyond to what Christ declares as the pinnacle of Love, “Love your enemies”.
Most philosophies of this world are still caught up with the most basic forms of love aforementioned, that is, “loving only those who love you back”.
A point worth much serious thought and action.
“If you love those who love you, what credit is that to you? Even sinners love those who love them.” – Lord Jesus Christ (Luke 6:32)