The degree to which people get worked up over this sort of issue is bizarre.
This is a small thing that will reduce unnecessary waste.
Yeah, it's "just straws", but it's one more piece of the larger puzzle. We recycle pop cans now. "But it's just cans, what about all this other waste?". We incorporate recycled material into writing paper. "But it's just paper, it's a drop in the bucket compared to other waste".
Every bit helps.
Fun fact: I drink beverages at home all the time without a straw, and the liquid still magically gets from my glass to my stomach. This is such a non-issue.