I did not mean that both systems are unbiblical. Both systems contain much truth. My position lies closest to Classical Arminianism, but I love to read and listen to Calvinist because they have much to offer.
Both sides seem to misrepresent the other in debate
There are many different types of Arminians, and different kinds of Calvinist. Some on both sides go way too far.
The question in the OP is on election and predestination. Calvinists believe in unconditional election, that God chose His Elect, and that choice was not based on anything in them or anything they do, including faith and obedience to the Gospel. In choosing the elect, He passed over the reprobate, which to me means double predestination, albeit not equal ultimacy. So the elect are created for Glory and the reprobate are created for destruction.
I believe in predestination, but have trouble with the concept of double predestination. God could justly do it that way, but that's not what I see in the scriptures
Arminians believe that election is based on foreseen faith. Some describe it as God looking down the corridors of time and choosing those He foresees will believe. I think this is an oversimplification of election, because Paul said that God does not choose based on anything in us or anything we do
I even was part of a denomination that had in it's treatise that those who believe become God's elect. Yet God chose us not even before we believed, He chose us before He created the Kosmos
Then that leads some into believing in Corporate election.
The answer, I think, lies in the immutability of God. God did not elect in time, God did not at some point decide to elect who He elect, He did not out of the blue decide to create, allow the fall, send His Son to save, etc. These are eternal, immutable, council's.
We all just struggle to wrap our heads around things that are revealed to us, but may be above us being able to fully comprehend. We just need to believe what the Word says.
I don't fully understand the Trinity or the hypostatic union, but I believe, and I see, though dimly. One day I will see clearly