Give strong drink to him who is perishing,
And wine to him whose life is bitter.
Let him drink and forget his poverty
And remember his trouble no more.
[Proverbs 31:6-7]
So why would you give something sinful to someone if their life was ending?
Does imminent death negate sin?
If sin doesn't matter when one is perishing, why not give them a prostitute?
The key is that person has a bitter heart and is ready to die.
The child of God does not have a bitter heart.
God gives the child of God a joyful heart.
This passage in verses 6 and 7 is speaking of one who is unsaved and ready to perish, not a child of God.
It makes no difference (even though you are wrong).
A holy God would never condone ANY sin to ANYONE.
It is NEVER OK to commit ANY sin in God's eye, bitter, perishing, whatever.
Why should the ones that are currently illegal remain illegal? Why should individuals who have a preference for the illegal poison not have individual choice?