So basically you dislike live feedings because mainly of the possibility of the prey item injuring or even killing the pet snake, and also because you’re not comfortable with the prey possibly suffering.
It’s very rare for prey to suffer. Constrictors cause a massive blood pressure spike which results in unconsciousness followed by a stroke, heart attack, or aneurysm. The death is quicker than most farm harvesting of animals. The idea that they suffer as they suffocate has been disproven.
Not sure what the point you’re belaboring actually is.