No. The verb in v.6 is the causative Hiphil form of פגע, so it means "to cause a secondary agent to lay/strike". Hence, " וַיהוָה הִפְגִּיעַ בּוֹ אֵת עֲוֺן כֻּלָּנוּ׃ " And-YHWH caused-someone-to-strike upon-him the-iniquity of-us-all. YHWH did not lay all our iniquities on Him, but had all our iniquities laid/struck upon Him (whose "our" is being determined by the context.)
You're assuming that because הִפְגִּיעַ (hiphgiaʿ) is Hiphil, a secondary human agent must be the focus.
But the text never identifies men as the object of the action.
Isaiah says: "YHWH caused the iniquity of us all to meet upon Him."
The object is "the iniquity of us all", not "false accusations," "the Sanhedrin," or "the Romans."
More importantly, your reading still has to account for the flow of the chapter:
v.4: We esteemed Him (חשב, ḥāshab).
v.6: YHWH caused our iniquity to meet upon Him (פגע, pāgaʿ).
vv.11-12: He bore iniquities and sin (נשא, nāśāʾ).
Those are three different actions.
The chapter moves from human estimation to divine action to the Servant's bearing of sin.
So even if you stress the causative force of Hiphil, the verse still attributes the action to YHWH and the object remains our iniquity, not merely what wicked men did to Him.
That is why Isaiah 53:6 fits naturally with 53:11-12, not with the claim that the entire chapter is only about human accusation.
v.12 uses נָשָׂא ; v.11 uses סָבַל
Jer 44:22
“So the LORD could no longer bear (נָשָׂא]
it, because of the evil of your doings
and because of the abominations which you committed. Therefore your land is a desolation, an astonishment, a curse, and without an inhabitant, as
it is this day.
Isa 1:14
Your New Moons and your appointed feasts
My soul hates;
They are a trouble to Me,
I am weary of bearing (נָשָׂא]
them.
NaaSaa' here means put up with/tolerate, and is arguably the same sense as Isaiah is using it in v.12
And this sense, applied to verse 12, in no way undermines the earlier verses that say that Jesus was not imputed by God, but by men, with our sins.
v.11 uses סָבַל, which is also used here
Lam 5:7
Our fathers sinned
and are no more,
But we bear (
סָבַל ) their iniquities.
Here, the sense is that they are bearing the consequences of their fathers' sins, not that they are being imputed with their fathers' sins.
And this sense, applied in verse 11, in no way undermines the earlier verses that say that Jesus was not imputed by God, but by men, with our sins.
You're right that I misspoke about verse 11 using נשא. Verse 11 uses סבל (sābal) and verse 12 uses נשא (nāśāʾ). Because I conflated verses 11 and 12 from memory instead of checking the Hebrew text carefully enough.
But that correction does not actually help your argument.
The issue is not whether nāśāʾ and sābal can sometimes mean "endure" or "put up with."
Of course they can.
The issue is how Isaiah uses them here.
Isaiah 53:11 says: "He shall bear (סבל) their iniquities."
Isaiah 53:12 says: "He bare (נשא) the sin of many."
In both verses, the object is not persecution, insults, or false accusations.
The object is iniquities and sin.
Your examples from Isaiah 1:14 and Jeremiah 44:22 involve enduring something objectionable.
But neither passage says: "bear the sin of many."
Nor do they occur in a context where the Servant is simultaneously described as an asham (guilt offering, Isa. 53:10), bearing iniquities (53:11), and bearing sin (53:12).
Likewise, Lamentations 5:7 actually hurts your argument.
The verse says: "We bear their iniquities."
That is precisely the type of construction Isaiah uses.
Whether you define it as bearing guilt, consequences, liability, or burden, the point is that the iniquities of others are being borne.
It is not merely enduring false accusations.
So even granting your lexical observations, the flow of Isaiah 53 remains unchanged:
We esteemed Him stricken (human perception).
The LORD caused our iniquity to meet upon Him (v. 6).
He bears their iniquities (v. 11).
He bears the sin of many (v. 12).
The repeated focus is still on sin and iniquity, not merely on men falsely accusing Him.
That is the point that your word studies never actually remove from the chapter.