I'm not accusing you of anything, but can I ask you to reconsider some of your reasoning? The resource expenditure savings argument is also used by eugenicists when they advocate for the killing of the disabled or "undesirable". Therefore, I would like to suggest that is wrongheaded to lend credence to this idea.

The basis of the argument isn't very sound since it doesn't actually take that much to provide for an individuals basicmost needs, especially if they are an inmate within a preexisting prison infrastructure. Only in the most extreme of circumstances, such as in the event of a major disaster, could the provision of that person's needs require depriving someone else of theirs.

Using lethal force against reactionaries has its merits, and you have pointed some of them out earlier. Saving resources, however, is not a particularly valid one and I would like to gently suggest that you reconsider that point.