You mean the only collection of 75 or a hundred ways, because Evangelicalism certainly isn't just one way, because there isn't just one kind of Evangelicalism.
And as you all have proven Catholicism isn’t only one way or for example you would be on your knees kissing Bergolio s ring as your own teachings require
Actually it is because this.
John 14:6 Jesus said to him, “I am the way, and the truth, and the life. No one comes to the Father except through me.
In Evangelicalism, it's about JESUS, not your church vs my church.
It's all about Jesus and while there are different ways to minister to people to bring them to saving faith in Christ, the focus is on the saving faith IN CHRIST, not the saving power of our specific denomination or religious rituals.
So there's the Salvation Army, for example, whose ministry focus is those on the street.
And there's Mercy Ships which ministers medical help to the poor and destitute in third world countries.
There's Samaritans Purse who does disaster relief.
There's the Christian and Missionary Alliance, which is a world wide missions organization with a strong missions focus.
Same God, same Jesus, same Holy Spirit, ministering to different needs as they see fit.
One body, different parts not all having the same function.
1 Corinthians 11.
1 Corinthians 12:12-26
For just as the body is one and has many members, and all the members of the body, though many, are one body, so it is with Christ. For in one Spirit we were all baptized into one body—Jews or Greeks, slaves or free—and all were made to drink of one Spirit.
For the body does not consist of one member but of many. If the foot should say, “Because I am not a hand, I do not belong to the body,” that would not make it any less a part of the body. And if the ear should say, “Because I am not an eye, I do not belong to the body,” that would not make it any less a part of the body. If the whole body were an eye, where would be the sense of hearing? If the whole body were an ear, where would be the sense of smell? But as it is, God arranged the members in the body, each one of them, as he chose. If all were a single member, where would the body be? As it is, there are many parts, yet one body.
The eye cannot say to the hand, “I have no need of you,” nor again the head to the feet, “I have no need of you.” On the contrary, the parts of the body that seem to be weaker are indispensable, and on those parts of the body that we think less honorable we bestow the greater honor, and our unpresentable parts are treated with greater modesty, which our more presentable parts do not require. But God has so composed the body, giving greater honor to the part that lacked it, that there may be no division in the body, but that the members may have the same care for one another. If one member suffers, all suffer together; if one member is honored, all rejoice together.
Also note, the churches listed in Revelation 2&3 all are different and have different strengths and weaknesses, yet Jesus clearly recognizes all of them as legitimate parts of His body.