Responding specifically to the "vote carefully every couple years" part of this presumably sarcastic remark: I think this kind of throwaway comment belittles the fact that voting _does_ matter.
Last night, the Republicans held a primary debate in which none would acknowledge human-caused climate change. Last year, the Democratic party passed the inflation reduction act which puts a bunch of resources into addressing climate change: https://en.wikipedia.org/wiki/Inflation_Reduction_Act
"Recycle our plastic" may be worthless, but voting and acting while also developing technical solutions really does matter.