Iglesia Ni Cristo's OUTSIDE Of this Religion, There is NO Salvation - False Doctrine

According to my research, this religion only started in 1917 but Jesus started His church 2000 years ago. So what happened to those churches and religions built before 1917 which were not branded or named "Iglesia Ni Cristo", don't they have salvation..... Just because certain people decided to call a religion "Iglesia ni Cristo" does NOT really mean they are the ONLY religion of Christ. I can start a religious institution now, and call it "IGLESIA ni CRISTO", and i can tell my members that outside this religion, there is no salvation.... Analogy of this is a TOOTHPASTE, there is COLGATE, CLOSE-UP, AIM, etc. They have slight variation of flavors but in reality they are all TOOTHPASTE.. Just like in CHRISTIAN RELIGIONS. There are Catholics, Protestants, 7th day Adventists. They have slight variations in doctrines, but they are all CHRIST FOLLOWERS. Each of them criticizing each others. All of them teach they are the TRUE CHURCH of Christ, and the TRUE PATH. I think they teach this to KEEP THEIR MEMBERS, and so that they do not leave... It's also BUSINESS you know... Because if their members leave, it will be REDUCTION of their INCOME...RELIGIOUS INSTITUTIONS DID NOT DIE on the CROSS to save your SOUL from HELL. It is JESUS, and OBEYING His Bible will save your soul from Hell, and not your religion....Yes you are IGLESIA NI CRISTO MEMBER, but if you living a life contrary what the bible instructs you, then you are heading into Hell unless you repent... I GUARANTEE you that...