By what authority are you right and they wrong? They can do the same to you with exactly the same authority as you.
Deny scripture according to whom?
According to Oneness Pentecostals (non-trinitarian)? According to Dispensationalists (Gospel of Paul not Jesus)? According to Calvinist (salvation by election not by grace through faith)?
These and more claim sola scriptura supports their doctrines on Christ, faith, salvation.
In the end it becomes scripture according to each individual, the Christian faith according to each individual. We should agree that this is not what Christ intended.