12 All who have sinned without the law will also perish without the law, and all who have sinned under the law will be judged by the law.
13 For it is not the hearers of the law who are righteous before God, but the doers of the law who will be justified. [!]
14 When Gentiles who have not the law do by nature what the law requires, they are a law unto themselves, even though they do not have the law.
15 They show that what the law requires is written on their hearts, while their conscience also bears witness and their conflicting thoughts accuse or perhaps excuse them
16 on that day when, according to my gospel, God judges the secrets of men by Christ Jesus.
I would say the "they" of verse 15 has as its antecedent the Gentiles of verse 14 who have not the law but do what the law requires.
Maybe I don't understand what you're saying.
Remember I am not the one who brought forth Romans 2:15.
When I went to see exactly what Romans 2:15 said I found it to be in the () starting in verse 13. And further found that verse 11 states For there is NO respect of persons in God.
This is contrary to what all denominations proclaim.