No, the issue is not about deciding for ourselves where we stand. The specific issue is refusing baptism to a believer, that is, where someone else stands.
And Scripture is not silent on this. The apostolic church baptized those in government positions.
But in this case, where the early church, as a rule, refused baptism to a confessing believer, just who did they imagine they were judging, those in the world or those in the church?
Then where we should stand is abstaining from being a part of worldly powers. That is why I abstain from secular politics.
The early church did baptize those in government (as did the ECF's I quoted). They had no qualms about it. But when someone was baptized, when someone became a member of the Christian community, they were expected to end their involvement with worldly powers and to instead be a witness to the world.
So I do agree that Scripture is not silent about the sinner ending his or her position in regards to worldly powers. My point is that YOUR argument is one of silence. You have ignored my argument (and the early church's argument) based on Scripture (that we are called out from the World, that the World is hostile to the Kingdom, that the Worldly powers are enemies of Christ, that Christians who involve themselves in these powers are not fit for the Kingdom of God, that we are to refrain from being a part of the World system and instead are to be a light to those who remain in this system...etc.
All of those passages support the position of Christians from the time of the early church until the Roman Catholic Church. And I agree with their interpretation of those passages. I agree with how they applied those passages. Once someone is saved they are to live holy lives, lives set apart, lives not entangled with the World, while remaining in the world as a Light.
BUT you have offered absolutely no interpretation to the contrary. You just acted as if those passages did not exist. You have failed to provide even one example in Scripture to the contrary (you talked about how John the Baptist told Jewish people they were to act as they anticipated the Messiah, you talked about people who were in the world being saved....but that's it.