No one who believes their own reasons/excuses for eating meat will stop eating meat. Begin to question your beliefs and your own willingness to believe them.
Biblically (which so many base their "right" to kill and eat animals) humans and animals were amply provided with food that grew from the soil and told by God that this is what was to be eaten. Questioning God (i.e. eating of the fruit of the tree of good and evil) resulted in catastrophic changes to our well being and that of all living creatures, culminating in a great flood in which only a handful of humans survived but a great number of animals did, at God's request.
After the flood God put fear into the animals of the ark to protect them as far as possible while new lands began the slow initiation into vegetation and crops.
To continue to eat animals after the land became arable and rich was man's choice, not God's. And it still is, to this day.