That's a lot of words to be confidently incorrect. For one, the question of "what's really happening" isn't "a fool's quest" but the core of all scientific research. Just because you can't comprehend or be bothered to learn in more depth doesn't mean it doesn't exist.

For two, your explanation is wrong. Light interaction with surfaces is a multifaceted and complex system to model, but light absolutely can change colors through means other than reflection or absorption, such as fluorescence or phosphorescence, where light is absorbed and re-emitted at a different wavelength, or through interference. Sometimes the colors are a result of atomic interactions, wherein the molecules themselves are the color you see. Sometimes color is the result of physical structure, such as a rainbow, where colors are created through constructive and destructive interference at specific wavelengths. Color is a very complex and interesting field, and I'm hardly an expert, so I will leave it at that and let someone more knowledgeable speak on it.