And that symbolism — as seems to be the case with just about anything with any semblance of symbolic value nowadays — has become politicized and polarized, which in turn has further elevated straws' symbolic value for both sides (there's a "straw man argument" pun here somewhere).
The right is obsessed with how the left is trying to control even the most trivial aspects of everyone's lives, and the left is obsessed with how the right would rather selfishly spew plastic into the environment than to give up even the most trivial conveniences.
This feels like a tension that can exist only in the Twitterverse. I really can't imagine pre-internet society actually having strong opinions about any of this.