Q2. Paul called the Judaizers' message as a "different gospel," a perversion of the true gospel. How is this dangerous to the Galatian believers? How do twisted gospels (or an unbalanced interpretation of the gospel) affect Christians in our day?
It was dangererous because if they believed the wrong thing they would be going against the word of God, they would be doing the will of man and not the will of the Father.
The wrong teaching of the word of God is the same today as it was thenm if you listen to a perverse version of the true gospel you would not be following the word of God, there the Lord will, will not be done.