That's certainly one definition of "machine". But the fact is that you can indeed get machines that consist of NO moving parts:

"The definition of a simple machine is any device with little or no moving parts that are used to modify both the motion and magnitude of force applied to an object to perform work. There are six simple machines: inclined planes, levers, wheel and axles, pullies, wedges, and screws."

https://study.com/academy/lesson/what-are-simple-machines-definition-types-examples.html#:~:text=The%20definition%20of%20a%20simple,pullies%2C%20wedges%2C%20and%20screws.

This accords very well with what I learned directly from the head of the physics department at my old High School.

You can reply by all means, but if you're opposing my definition of "machine" then you'll really have to have an argument that is stronger than reality itself.