> Machine learning (ML) is a field of study in _artificial intelligence_ concerned with the development and study of statistical algorithms that can learn from data and generalise to unseen data, and thus perform tasks without explicit instructions.
The definition there is correct. ML is a a field of study in AI, that does not make it AI. Thermodynamics is a field of study in physics, that does not mean that thermodynamics is physics.
https://en.wikipedia.org/wiki/Machine_learning
You are free to define AI differently but don't be surprised if people don't share your unique definition.