What the English translators called “the works of the law” was the false oral law of the Prushim.
The issue immediately at question in the Galatian church was whether Christians needed to be circumcised.
Please tell us: was circumcision required by the "false oral law of the Prushim," or by the law of God as received by Moses?
No, that was not the issue in the post.
Try to concentrate.