Well, SiO2 is pretty different from plastic, chemically speaking. And I would expect that we inhale several grams of fine sand dust per week too.
In other words, the amount of "glass" entering your body because you drank a beer is probably irrelevant compared to e.g. Sahara dust (if you're in Europe) in the air around you.
Yes and silicate is an environmental component that's well understood and our bodies have adapted to it because sand has been a thing forever. And glass is chemically inert.
Dust or soil has thousands of components, metals, bacteria, fungi, molds, organic matter, feces etc. It can give you farmer's lung and other illnesses. Plastic is comparatively inert. Weird that there is not environmental movement to reduce soil from the environment.
In other words, the amount of "glass" entering your body because you drank a beer is probably irrelevant compared to e.g. Sahara dust (if you're in Europe) in the air around you.