No... v 45 says all those who have heard AND HAVE LEARNED from the Father, come to Jesus. Not all who hear from the Father are willing to learn from Him.
And v. 45 does not at all logically imply that all those that come to Jesus have learned from the Father. Many came to Jesus to argue with Him against what He was teaching and refused to learn from Him.
[Jhn 6:45 KJV] 45 It is written in the prophets, And they shall
be all taught of God. Every man therefore that hath heard, and hath learned of the Father, cometh unto me.
The coming to Jesus is intended in the spiritual sense, not in the physical sense. It does not mean they first come to Jesus in the physical sense, hear the Father yet reject Him; instead, they hear spiritually and learn, and by that, they come to Jesus - they may not even realize it initially but gradually come to an awareness within the human conscious mind over time - nevertheless, it must occur. Those who never learn were not sent to Jesus by the Father; those He sends, as v45 states, MUST come to a belief, so willingness and/or or choice is not germane, and neither did I nor those verses propose willingness as a prerequisite. All that matters is that they were directly chosen by the Father, taught (from being chosen) by Him, and thereby given by Him to Jesus. Those given are unwilling, ambivalent, and even hostile to begin with until they learn, but that is irrelevant. What is relevant, is that the Father had chosen them to draw them; He does not do so for everyone. In order to learn and to be taught by the Father, one first hears the Father, and as
@Magenta posted, the hearing is spiritual hearing, but to hear spiritually, one must first be made born-again spiritually by the Holy Spirit, and that is the significance of 1Jo 5:1 - that those who truly hear and truly believe can only do so because they first were made born-again.
The "every man therefore", connects the "taught of God" with the "learned of the Father" and they, without exception, must come to Jesus, the others, cannot. IOW, those, and only those, who come to Jesus, do so solely because they were chosen, taught, learned of the Father, thereby coming to Jesus, believing in Him. As can be inferred from those verses, those who do so, played no part whatsoever in the process but only as its recipients/beneficiaries- it is all by God, nothing by man.
[Jhn 8:47 KJV] 47 He that is of God heareth God's words:
ye therefore hear [them] not, because ye are not of God.
[1Jo 5:1 KJV] 1
Whosoever believeth that Jesus is the Christ is born of God: and every one that loveth him that begat loveth him also that is begotten of him.