Some people have said that the Mark is forgivable. Others have said that God will not give the grace of repentance to those who take the Mark. Does taking the Mark of the Beast have to be consensual? If they force the Mark on us will we be damned? I don't think so if we don't will it. But what if they torture us and under torture we take the Mark? Will we be damned then? Maybe God will give the grace of enduring torture to the elect, and the reprobate will not be given that grace even if he does not want to take the Mark. It is frightening thinking that they will try to force the Vaxx on us.

Also to commit a sin you need the consent of the will

No, it does not require consent. Getting drugged without your knowledge and having the mark will condemn you for 90 days. All it has to do is be on you and no matter how you got it, you're doomed until 90 days. Read the book, you'll understand, or watch the video or hear the audio, they all say different things but they say it quickly so you need to listen to all at the same time very carefully or you might miss them.

People who get THE Mark (it's not the "jab" but the "jab" is a type and you will not be looked at very favorably by God if you take it and may end up shortening your life span against The Will of God and may be damned as a result, if you took it you had better repent of this immediately and reject any further ones) will not be given the Grace for repentance.  This is taught by The Early Church Fathers and The Church in general and in particular is taught in Scripture (Apoc. 14 9-11.)

(9) And the third angel followed them, saying with a loud voice: If any man shall adore the beast and his image, and receive his character in his forehead, or in his hand; (10) He also shall drink of the wine of the wrath of God, which is mingled with pure wine in the cup of his wrath, and shall be tormented with fire and brimstone in the sight of the holy angels, and in the sight of the Lamb. (11) And the smoke of their torments shall ascend up for ever and ever: neither have they rest day nor night, who have adored the beast, and his image, and whoever receiveth the character of his name. 

Whoever is touting this 90 day thing is not taught anywhere by The Church.

Whoever takes THE Mark will know exactly what it is and that they will be serving The Antichrist and denying Christ and due to this will be cursed by God and not given the Grace to repent.  They will viciously hate Christians and Christianity. 

No, it does not require consent. Getting drugged without your knowledge and having the mark will condemn you for 90 days. All it has to do is be on you and no matter how you got it, you're doomed until 90 days. Read the book, you'll understand, or watch the video or hear the audio, they all say different things but they say it quickly so you need to listen to all at the same time very carefully or you might miss them.

This is why one should never ask a question concerning Church Teaching in the anonymous section on CI

(9) And the third angel followed them, saying with a loud voice: If any man shall adore the beast and his image, and receive his character in his forehead, or in his hand; ...

This probably answers the question.  Someone would have to ADORE the beast and his image, in addition to receiving the character.  Consequently, if someone were forcibly given the mark, the person wouldn't necessarily be adoring the beast.  There's no precedent anywhere in Catholic theology for imputing something involuntary as sin.

Also, even if one were tricked into getting the mark, not knowing it to be the mark, this passage would seem to preclude that as well.

If they tied me down and vaccinated me by force, I have no doubt that God would not impute that as sin.  In addition, if people are fooled into taking the vaxx not knowing that it's the mark (which I don't believe that it is, since there's no reference to a right hand or the forehead vis-a-vis the vax).

At some point, the Antichrist will set up a new religion, and the adherents of that religion will have to receive a mark.

The Purpose of the mark is to set aside the FOLLOWERS of the beast from the FOLLOWERS of Christ. Remember that the faithful will also be marked, in contrast with those who hear the mark of the beast. 
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The mark will therefore (I think reason dictates) NOT be something that one accepts without full knowledge of exactly what it entails: following the beast. 

None of this "marking " is in the catechism

How does this work with falling into mortal sin and going to confession ??

 Are marks being switched from a cross to 666 when we leave the confessional