I disagree. I'm a physicalist, so I believe consciousness/qualia emerges from physical processes in the brain. It's absolutely possible for a computer be conscious provided it implements the right kind of computational process. Ultimately, whether or not a system is conscious is an empirical question that neuroscience will be able to answer once we have the right theoretical framework and tools for measuring the relevant variables.

I don't know what you mean by it being a BS definition of sentience. It's a technical term invented by philosophers to mean a specific thing. If you don't like it, use a different word.