I agree. Calvinism does not put believers in opposition to God.Truth is not subjective, but rather it is objective.
Jesus came to bear witness to the truth.
Everyone who is of the truth heard His voice
Jn18:37-38....notice Pilate suggested it was subjective.
Calvinism does not put believers in opposition to God.
We can judge righteous judgment.
Neither does Arminianism or Free-will theology put believers in opposition to God.
Truth is objective, but our understanding of truth is subjective. We may believe God has led us to the theology we hold, but it would be foolish to believe God has not led other Christians to the theologies they hold. Our theology is (by definition) our study (human study) of God. The difference is not truth but human understanding (a diversity Spurgeon viewed as necessarily based on the finite human mind).