Uhhhhh, no.
Truth is not relative. It does NOT depend on the “crowd” they speak to.
James and Paul are BOTH speaking the truth - from 2 different sides.
Paul is talking about the inefficacy of works of the MOSAIC LAW for salvation.
James is talking about the fact that works are PART of our faith as Christians.
Scripture is NEVER at odds with itself – YOUR moral relativism aside . . .
Believers are no longer under the law, we're under Grace. We're living in the Grace dispensation right now where belief saves you and not works.