神預定 is 神預定 based on His eternal sovereign 旨意
神預知 is 神預知 that is one of His capabilities because He is not bound
within the frame of time and space,

There is no CLUE revealed in BIBLE
to tell us 神預定 based on 神預知.
The argue is HERE.

'神不會預定人作惡' here you understand 預定 as TEACH or FORCE,
from this point of view, you are right, however, '預定' the REAL meaning
is not limited to what you understood.
'神沒有預定人不信' again you understand 預定 as TEACH or FORCE,
from this point of view, you are right, however, the matter of fact is that
'神預定a few 人信' here we can understand 預定 as TEACH or 'FORCE',
it is TRUE that God-Holy Spirit CHANGED our hearts first so that we can
believe in Jesus Christ (the same fact was viewed from our perspective
is 100%人自己的選擇) , we have no disagreement on this point.

Therefore:
as Rev. Tang pointed out :
神預定 100% TRUE
人自己選擇100% TRUE
人自己選擇 because of 神預定
神預定 never based on 人自己選擇

人作惡 because 神沒有預定 to force this person not 作惡, although common grace is always there to teach this person not 作惡, if you STOP arguing that the
fact '人作惡 because 神沒有預定 to force this person not 作惡' is not FAIR, everything become obvious and clear and understandable, otherwise,
you will never understand
神預定 100% TRUE
人自己選擇100% TRUE
人自己選擇 because of 神預定
神預定 never based on 人自己選擇.

Your argue is:

God love all people (it is true, we all agree)

if God don't do all things equally to each and every people
so that all people have the same opportunity to CHOOSE
by themselves concerning whether he is willing to be saved,
that turn out to be that GOD is NOT FAIR,
because God is FAIR, He must give all people the same opportunity.
(it is not REAL, we all know opportunity is different to each and
every people in all aspects).

Have you seen it clearly? you try to define what is FAIR and what is UNFAIR,
based on your definition, you REASON that God must do this way
otherwise, He must be unfair.