Lol! No, I'm not at all upset by your views. The Gospel message is the most fundamental aspect of our faith. This is what's called "Fundamental Theology". As Protestants, what saves is what's within that theology which includes the doctrine of the Trinity, and the 4 Soli (Sola in a plural form).
However, what does not save are all the rest. This is what's called, "Periphrial Theology" or, Secondary Theology. And that, includes Calvinism vs. Arminianism, Adult vs. Pedo-Baptism, any sort of doxology, ecclesiology, hermaneutics, Homiletics, etc.
This, is the historical belief in Protestantism; founded in scripture. To go beyond that, meaning, to add to the fundamentals of the faith makes you a Hyper-separationist. These are the kinds of people who are often legalistic, and divides the church (1 Corinthians 1:10-17), as they stress on any doctrine they feel important and make that as a test of true faith.
Be careful that you do not fall into this.
I'm a Calvinist and you're an Arminianist; but we believe in the same Gospel that saves; that makes us Brothers and Sisters. There is no true church, for the church is the spiritual body of Christ.