http://www.cuf.org/FileDownloads/signofthecross.pdf
Catholics (The original Christians) initially made the "sign of the cross" on themselves. Wearing a cross would have called undue attention to themselves during the time of the persecutions, as mentioned in the article. Further the cross is a reminder that we are linked to Christ through he suffering death and resurrection: Colossians 1:24 Now I rejoice in my sufferings for your sake, and in my flesh I am filling up what is lacking in Christs afflictions for the sake of his body, that is, the church,
Additional references: Romans 8:17 Now if we are children, then we are heirs--heirs of God and co-heirs with Christ, if indeed we share in his sufferings in order that we may also share in his glory.
2 Corinthians 1:5 For just as the sufferings of Christ flow over into our lives, so also through Christ our comfort overflows
2 Timothy 1:8 So do not be ashamed to testify about our Lord, or ashamed of me his prisoner. But join with me in suffering for the gospel, by the power of God,
Yeah, just like I said “They would have condemned anybody for this heinous jewelry.”.