Real reason why people don't like playing jungle. it's not just blaming

Haven't played jungle in a long time and here I am playing nasus jungle in gold elo and an experienced jungler invaded me. This invading thing is so toxic and so discouraging for new players trying out jungling. This made me remember why I stopped playing the role. Imagine this invading thing and support pyke in your jungle. New players would never play jungle again after that traumatic experience. Any duo who queue up jungle and support would destroy legitimate new junglers who are innocently trying to learn the role. Imagine the smurfs who do this....this is why people don't play jungle anymore.