I think anyone with an open mind and critical thinking is eligible to discuss. In this case, s/he is not.
In the process of discussing with another user in this thread, I found a chapter that beautifully summarise the argument, see below:
1. God’s beliefs are infallible.
2. For any event x, if God believes in advance that x will occur, then no one is
in a position to prevent (or avoid) x.
3. For any event x, if no one is in a position to prevent (or avoid) x, then no one
is free with respect to x.
4. For every event x that ever occurs, God believes in advance that it will
occur.
5. So, no one is free with respect to any event.
6. So, human free will is a complete illusion.
Source:
https://spu.edu/depts/philosophy/documents/Foreknow.pdf