the Bible tells us to not live in fear. and, as bunklocoempire pointed out, Jesus himself said the world would hate us just as it hated Him.
Romans 5, Terrel. Romans 5:3 & 4. "More than that, we rejoice in our sufferings, knowing that suffering produces endurance, and endurance produces character, and characterproduces hope."
it's going to get worse. my suggestion: pray for these who are persecuted, and pray for those who do the persecuting. our hope is not in this world. our hope is not even found in the life we are provided in this world. we are merely ambassadors, in fact we are a mist that vanishes quickly.
what can "they" do? take our lives?? Romans 8:38&39 "For I am sure that neither death nor life, nor angels nor rulers, nor things present nor things to come, nor powers, nor height nor depth, nor anything else in all creation, will be able to separate us from the love of God in Christ Jesus our Lord."
I can assure you, Youcef Nadarkhani, and those who choose Christ under penalty of death understand this in a much more practical way than we can. for now.