What is central to the verses you included is belief. However, we are informed that true belief is a gift of the Holy Spirit, but only to those
whom God had chosen for salvation. Look at Acts 13:48 following. It does not say those who believed were ordained to eternal life, it says that those ordained to eternal life believed with being ordained as the prerequisite, not the reverse.
[Act 13:48 KJV] 48 And when the Gentiles heard this, they were glad, and glorified the word of the Lord: and as many as were ordained to eternal life believed.
[Gal 5:22 KJV] 22 But the fruit of the Spirit is love, joy, peace, longsuffering, gentleness, goodness, faith,
Regarding those of John 12:32, we are told in verse 12:37& 39, that even though they (His disciples) saw so many miracles by Him, yet they COULD NOT BELIEVE. If they, having been His disciples and having observed His miracles first-hand yet could not believe, then true belief is not a function of man's intellect, but of a spiritual change and only God can cause that. So, the "all" of 12:32 represent the elect, not everyone.
[Jhn 12:37 KJV] 37 But though he had done so many miracles before them, yet they believed not on him:
[Jhn 12:39 KJV] 39 Therefore they could not believe, because that Esaias said again,