The vast majority of the replies to the question "why eat carbs" isn't simply "because I like them", it should be properly said thus: "I prefer eating carbs to curing my type 2 diabetes and living a long, healthy life".
As a type 1 diabetic, I shake my head at the blithe way many seem to deliberately be choosing to remain with their condition, despite knowing the way out of it, thereby wasting finite medical resources and drug insurance coverage in the process, preferring to eat their cake and stay diabetic, too (so to speak).
I find this type of mentality frankly selfish and irresponsible. 90% of diabetics are type 2 and it can be reversed through low-carb diet alone in many (most? all?) cases. Regardless of anecdotal evidence presented here in this forum, large scale studies shared on this very website show that low-carbing works and denying that is pointless.
The tax money that goes towards treating these patients is taken away from more serious incurable diseases, for whom adequate resources are already unavailable. GCMs aren't free and given to every type 1, and type 2 drugs like GLP-1 which help type 1s tremendously are out of our reach in most cases, because without an indication for its use, insurance won't cover it, and we can't afford e.g. 1400$ a month for semaglutide (which is a WONDERFUL type 2 drug for type 1 diabetics. 1.5% A1C drop, lower sugar variance and insulin requirements). This is besides the countless billions that goes into type 2 drug research that companies invest in due to the demand, which could otherwise go to other diseases. Funding for healthcare is a zero-sum game, since budgets are limited and finite. And insurance is a zero-sum game too, since pooled risk is increased when many more people are sick. Many recent Type 2 meds are ridiculously expensive considering the low, low cost of low-carbing. It's self-indulgent in the extreme.