Profiteering is undercutting every possible thing. The profit motive over a democratically planned economy is horrible most of the time but really becomes a mess in a crisis.
Why not have bread lines only in a crisis, when you can have them all the time instead?
1. how often capitalism has bread lines in countries economically linked to, but outside of, the US and other rich capitalist countries, in the "global south";
2. the fact that bread lines in "socialist" (but not actually socialist) countries like Venezuela are in large part due to US policy and sanctions, and are over-reported anyway;
and 3. the fact that socialism has never been tried in a fair way because it is an existential threat to the wealth of people like Jeff Bezos, who prefer to strangle it in the cradle instead.
But thank you for regurgitating the ignorant "bread lines!" trope when there are actual, literal bread lines in the US right now!