If you're Protestant then you're not eating the Body of Christ, you're just eating some empty carbs in what is simply a memorized act.
And our services are not memorized responses.
From my perspective as a practicing Roman Catholic and as a musician for a couple of Protestant churches I'd say that at any given service amongst the various denominations there is a mix of people who are simply uttering or reading responses without thinking about the words at all, and others for whom the words are thoughtful and heartfelt.
Eucharist, or empty-carb-munching; you have the freedom and choice to partake of either.
You guys generally have better music (you're welcome) though, I'll give that.