I understand your sentiment, but it just doesn’t work. I’ll happily ally myself with Protestants against all sorts of bad things. The problem is Protestantism is a bad thing too - just not as bad as many other things.
No, Protestantism moved a significant number of Christ’s followers away from a corrupt institution and brought them into the Light. Even the most ardent devotee of the papacy cannot deny Rome had gone wrong.
God has worked through all of us—Roman or not—who make His Son the Lord of our life.
Anyway, I won’t try and convince you to change your mind...but I think in the world eternal you’ll see things differently.