While I don't want the Government at any level, local, State or Federal, telling me or restaurants how much salt, fat, sugar, calories and so on a dish can contain, I do support the concept of "informed consent".
I do want to know when I go to a restaurant what the key dietary elements are in my meal. Calories, saturated fat, total fat, salt, and so on. I'll still indulge occasionally and enjoy rich, oversized portions but I want to know just how much damage I'm doing to my diet and body so I can compensate before or afterwards.
I don't think that is an unreasonable position.
Then get a little scale an a chart, or learn to eyball and accurately estimate portions (like anybody with diabetes must do all the time), do you own calculations, and quit advocating for the imposing significant costs on restaurants, and by extension those dining next to you.
I can look at a monster plate of pasta Alfredo and know exactly what is involved on the plus side and the minus side. Why can't you? And does knowing it's 1250 vs. 1290 calories really useful information?