Animals kill each other and humans kill animals. It’s survival of the fittest. Isn’t that just the way the world is?

The way you describe is the way of the world in its fallen state where humans continue to stubbornly ignore God’s warnings and instructions and instead live according to their own misguided and destructive imaginations (Genesis 6:5). God did not create the world this way (Genesis 1), nor is it destined to remain this way (Isaiah 11). There will come a day where the way of the world will be rolled up like a scroll and will be replaced by the way of God (Isaiah 34:4, 2 Peter 3:10, Revelation 6:14). It starts with putting our faith in God and not doubting his way of love and kindness (James 1:6). We should live up to our divinely inspired image of loving dominion by living a life of kindness and humility (Genesis 1:27-28). This includes ceasing to arrogantly perceive ourselves as superior to creation or justifying our acts of cruelty in the name of God (Proverbs 12:10). The flesh is weak, but the spirit is strong (Mark 14:38). We should boldly and humbly live according to the spirit and rule over the appetites of the flesh that seek to harm God’s good creation (Genesis 4:7). We should teach and encourage others to do likewise, loving with a gentle and patient heart the way God loves us (Galatians 5:22-23).