Just so you know, the upside down cross is not a satanic cross.
It is St. Peter's cross. It is not disrespectful to Christianity. The reason the cross is upside down is because St. Peter was crucified upside down because he felt that he was unworthy of dying in the same manner of Jesus Christ. Thus St. Peter's cross demonstrates humility before Christ and is still used for that purpose by some Christians. It got popularized as a way as disrespecting the church, but in fact it's
extra super duper respectful.