None of this crap really fixes anything, it's just a way for Western people to pander to a hyper-liberal worldview that "solves" peripheral problems because it's too privileged to fully understand the central problems facing the world.
I read a paper someone posted on here a few months back that described men as less environmentally conscious when their masculinity is threatened. The experiment itself was poorly structured and rife with assumptions of what constitutes environmental consciousness and threats to masculinity. I bring this up because it's an example of multiple academics devoting their time to totally nonessential problems in an effort to gain recognition in the winds of a hyper-liberal zeitgeist.
Hunger, access to goods, guaranteed medical care, literacy, freedom from tyranny and corruption, democratic institutions in the third world, clean water.....these are some of the actual problems that face the world.
Single-use plastics are a problem too, but plastic straws are not the central aspect nor the simplest low-hanging fruit with which to begin tackling the plastics problem.