The root of misunderstanding you have concerning OSAS is that you won't listen to what people are telling you. You believe those who believe OSAS believe we have a license to sin. We do not. What we believe is that those who participate in sinful lifestyles void of repentance are not and never were saved. Those who have been saved still sin, but will not be drawn into sinful lifestyles because of the convicting and chastening work of the indwelling Spirit.
This doesn't mean there aren't some who teach that regardless of sin and lifestyle a believer goes to heaven. This doesn't make OSAS wrong; simply there understanding of it. And the OSAS crowd here would point out this error because it can cause unbelievers to die in their sins.
But what you teach is equally as dangerous. You have people believing that once they are saved, they must do work to remain saved. That would mean that we are now responsible to keep the very law to maintain salvation that we couldn't keep to acquire salvation in the first place. This harms both believers and nonbelievers: the believer because they are never trained to walk in the Spirit, and the non-believer because their confidence and faith is not actually in Christ, but their own endeavor.
But you have moved the goal posts on sin. You believe you have to be practicing sin in order to indicate that you were never born again to begin with (Which is far worse) because it will make you doubt salvation that you were once saved God’s grace in the past (if you did not have the false OSAS view on sin to begin with). Remember, it only took one sin to lead to the fall of mankind. It took only one kind of sin to condemn Ananias and Sapphira each. Remember, the devil’s lie in the Garden to Eve. He was trying to convince her to believe that she could break God’s command and yet not die. This same lie is being pushed today. So the idea here is spiritual death. You don’t believe that is possible. There is no kind of danger for you. But the Scriptures say to work out your salvation with fear and trembling. I mean, stop and think a moment. Most in the OSAS crowd do not believe 1 John 1:9 is salvific. They do not believe they have to confess of sin to be forgiven of sin but they believe it is only dealing with a break in fellowship with the Lord and not a loss of forgiveness (i.e., a loss of salvation). Yet, there is aboslutely no actual teaching for this. It’s also contradictory. If you believe you are forgiven of future sin like most OSAS believers, then there is NO reason to confess of sin EVER. Your sins should be gone. Now, some in your camp have tried to make 1 John 1:9 as referring to when we are Initially Saved, but that simply does not fit the context (1 John 2:1). Another problem in your belief is that you don’t believe the Parable of the Prodigal Son or James 5:19-20, which clearly teaches conditional salvation. In the Parable of the Prodigal Son, when the prodigal son came home after living it up with prostitutes, and he sought forgiveness with his father, his father said that he was “dead” and he is “alive AGAIN.” Obviously the prodigal son did not die physically. So this parable is talking in spiritual terms. The prodigal son died spiritually while living in sin with the prostitutes, and he became alive AGAIN when he came back home to his father seeking forgiveness with him. The parallel for us is that Jesus is our Everlasting Father who we need to seek forgiveness with if we ever fall into a life of sin. But you don’t believe this parable. There is no real danger of sin in your view. James 5:19-20 teaches the same truth.