In asking whether a Protestant should convert to Catholicism, one is assuming you mean Roman Catholicism.
There is no reason a Protestant should convert to Roman Catholicism, unless the Protestant thinks that he is missing out on something that he can find within the Roman Catholic religion.
Protestantism is actually a protest against the false teachings, pagan rituals, and ungodly behavior that is found in the Roman Catholic Church. To name some:
- Indulgences where people were/are encouraged to buy their salvation and make payment for their sins to keep them out of purgatory.
- Enforced celibacy, which is contrary to the Bible’s injunction not to prevent marriage, and warning that the Antichrist teaching will be introduced as being from God.
- Statues which are condemned in the Bible, especially the second commandment of the Decalogue as acknowledged by the Jews, but disregarded and covered up by the Roman Catholic Church.
- Magical powers attributed to priests who are able to turn the bread into the actual body of Lord Jesus Christ and the wine into His actual blood.
- The confessional system used to betray people and control congregations, wherein people perform arbitrarily prescribed penance for the forgiveness of sins, which is to declare the crucifixion of Lord Jesus Christ for sins of no account, and to hold Him up to contempt.
- The worldly hierarchical system of bishops lording it over others, whereas Lord Jesus said that those who follow Him will not lord it over others
- A mediatrix, a co-mediator in Mary the mother of Jesus, when the Bible states there is only mediator between man and God—the resurrected Lord Jesus Christ.
- The Mother of God cult that deifies a mortal woman above the Infinite, Almighty, Everlasting Creator, through Whom all things have come into being.
- The Queen of Heaven cult which puts a woman as co-regent with the Infinite, Almighty, Everlasting Creator Who reigns over all of Creation.
- Hebephilia the covered-up practice of seducing adolescents within congregations and associated perversions.
After reading the Bible, Martin Luther had ninety-five gripes with the church of Rome. These became the basis of the Reformation, and what is known as the Protestant Movement. However, being anti-Roman Catholic does not make one a Christian, the same as being baptized a Roman Catholic does not make one a Christian. For to be a Christian one must be born a second time by the Spirit of God and this only comes when we call upon God ourselves. The Gospel of John records the conversation of Jesus and Nicodemus, a ruler of the Jews:
- Jesus answered and said to him, “Most assuredly, I say to you, unless one is born again, he cannot see the kingdom of God.”
- Nicodemus said to Him, “How can a man be born when he is old? Can he enter a second time into his mother’s womb and be born?”
- Jesus answered, “Most assuredly, I say to you, unless one is born of water and the Spirit, he cannot enter the kingdom of God. That which is born of the flesh is flesh, and that which is born of the Spirit is spirit. Do not marvel that I said to you, ‘You must be born again.’ (John 3:3–7)
- God, who made the world and everything in it, since He is Lord of heaven and earth, does not dwell in temples made with hands. Nor is He worshiped with men’s hands, as though He needed anything, since He gives to all life, breath, and all things. And He has made from one blood every nation of men to dwell on all the face of the earth, and has determined their preappointed times and the boundaries of their dwellings, so that they should seek the Lord, in the hope that they might grope for Him and find Him, though He is not far from each one of us. (Acts 17:34–27)
Who would want to be a Protestant or a Roman Catholic if one could be a member of the Kingdom of God and be a Christian?
- Yet if anyone suffers as a Christian, let him not be ashamed, but let him glorify God in this matter. (1 Peter 4:16)
Only One Road Leads To Life Whereas All Other Roads Apparently Lead To Rome