"We claim the privilege of worshiping Almighty God according to the dictates of our own conscience, and allow all men the same privilege, let them worship how, where, or what they may," Article of Faith 11.
Heavenly Father loves me, because I am His child. This is true for everyone walking the face of the earth even if they worship Him differently than me or not at all. He commanded His children to love one another as Jesus loves. He didn't say love only the ones that agree with your denomination. He didn't say love only Christians. He said love one another. He also said forgive others and pray for enemies. Who knows if today's persecutor won't be tomorrow's convert to Christian truth. We don't know if or how or when God will perform a mighty work in someone's heart. We should be respectful of the beliefs of others while not embracing them as truth. AND...we should defend their right to worship as they may, as long as they don't use it to usurp the rights of others to do likewise.
The world has and ever will have those who wish to force others to believe as they do. This is not the way of Jesus Christ or Father in Heaven, although some have and still do use force in the name of Jesus Christ. It's amazing to me, as I study history, to see similar atrocities performed on today's stage in the name of God. Jesus was a gentle Prince of Peace, whose example we ought to follow. He didn't use force to save the world, when He was here doing his earthly ministry. He could have called down the hosts of heaven and wiped out all evil. Instead He gave His greatest commandment and performed the ultimate sacrifice for every man, woman, and child upon the face of the earth: past, present, and future. Certainly, it is OK to defend myself if I can't flee or reason, but force and contention and violence and persecution are not Jesus' ways. Read 1 Corinthians 13.
"...love one another; as I have loved you, that ye also love one another," John 13:34.
"But I say unto you which hear, Love your enemies, do good to them which hate you, Bless them that curse you, and pray for them which despitefully use you. And unto him that smiteth thee on the one cheek offer also the other; and him that taketh away thy cloak forbid not to take thy coat also," Luke 6:27-29.
"But the Lord said unto Samuel, Look not on his countenance, or on the height of his stature; because I have refused him: for the Lord seeth not as man seeth; for man looketh on the outward appearance, but the Lord looketh on the heart," 1 Samuel 16:7.
"...with what judgment ye judge, ye shall be judged," Matthew 7:2.
"And ye ought to say in your hearts—let God judge between me and thee, and reward thee according to thy deeds," Doctrine and Covenants 64:11.
