Well, no. I'm sorry and it has nothing to do with me telling you that you are wrong. Again, we both stand on the same side of the isle in that, Islam is a false religion. But, Islam is a religion based solely on the Quran and the Quran alone. Mainstream Muslims usually accept the Hadiths as another religious text likened with the Quran. However, the Quran is explicit in the fact that it was to be the final and complete text of God. The Hadiths are a collection of rituals, sayings, and rulings by scholars said to be from Mohammed that was recorded hundreds of years after his death (ironically). Mainstream muslims generally accept the Hadiths as another religious text paired with the Quran. However, the Quran is explicit in the fact that it was to be the final and complete text of God.
If you'd like to debate this with Muslims, be my guest. And send me the thread link when you do.
With that said, I think I'll go ahead and jump off this topic here. In regards to this thread, I don't really care about what Islam says. I think my comparison is not perfect, but a good one. The muslim faith has traditions (as does every mainstream religion including Protestantism rather they're willing to admit that or not) yet the religion is based on the Quran. Where it differs from Catholicism in the comparison you purpose is the fact that some of our traditions aren't explicitly taught in the bible. Just like it's not explicitly taught that the Father, Son and Holy Spirit are referred to as the "Trinity", yet Protestants accept this as it's been passed down in Christendom from the 4th century and possibly earlier. Nonetheless, typical sola scripture defenders will claim that if it's not in the bible, we must not believe it. Or, if it's been passed down through tradition it's not Christian doctrine. This is exactly what Islam believes about the Quran with the exception of the reverence they have for Mohammad in which is deeper than for any reverence that some Protestants have for Jesus' mother.
1) Roman Catholicism's agreement that Islam is false does not make Roman Catholicism true.
2) That God is Triune is taught in the Scriptures 3inOne. Mat 28:19 Go ye therefore, and teach all nations, baptizing them in the name of the Father, and of the Son, and of the Holy Ghost; 1 Jn 5:7-8; 2 Cor. 13:14; Matthew 3:16-17, etc.
3) Mohammed is a false prophet and the father of a false religion that is leading millions to hell. The Roman Catholic Mary is a false image and an idol that is forbidden by God in the holy Bible and the Roman Catholic religion by perverting the gospel of Jesus Christ is also leading millions to hell.