Single use bendy straws were literally invented to help keep bedbound and other disabled people alive. There are also many reasons people can’t use different alternatives.

You personally not using something, doesn’t mean others don’t, and to deny access to a literal lifeline for the sake of 0.003% of the plastics in the ocean (literally a drop in an ocean) because it makes you feel better and requires zero effort or sacrifice (from you), instead of actually acting to resolve the problem (like being anti-capitalist rather than just trying to apply band aids to its symptoms) is not only gross and ableist, but also a colossal counterproductive waste of time.