First, I’m assuming that the “knowledge” and “deliberate consent” are both equal in both cases as it also not only what you do but the extent taht you knew it was a sin and that you did it with full consent for it to be a mortal sin.
Second, this exercise kinda reminds me the story of the interrogator in war who said, “If you give me your secrets, we’ll let you pick how we kill you.” Not much of choice.
Finally, I hate when we try to put us in the place of God. Too many threads seem so judgmental of people. It is our call to “love the sinner but hate the sin.”
From teh Catechism: Mortal sin is a radical possibility of human freedom, as is love itself. It results in the loss of charity and the privation of sanctifying grace, that is, of the state of grace. If it is not redeemed by repentance and God’s forgiveness, it causes exclusion from Christ’s kingdom and the eternal death of hell, for our freedom has the power to make choices for ever, with no turning back. However, although we can judge that an act is in itself a grave offense, we must entrust judgment of persons to the justice and mercy of God.