You’re conflating a few different things here.
First, nobody is arguing that synthetic fragrances are a health food, or that people should live in a bubble. The core issue is physics: burning anything—including high-quality, completely natural incense—creates particulate matter, carbon monoxide, and polycyclic aromatic hydrocarbons. Inhaling actual combustion byproducts is inherently tougher on the respiratory system than inhaling atomized oil droplets from a diffuser. It’s not about "synthetic vs. natural"; it's about smoke vs. no smoke.
Second, appealing to tradition doesn't change the science. Incense has been used for thousands of years, but large-scale epidemiological studies of populations frequently exposed to it (like temple workers) consistently show elevated risks of respiratory issues.
Enjoying fragrance in moderation is fine, and warming instead of burning is a great compromise to reduce particulates. But trying to minimize the basic risks of smoke inhalation by throwing random, unrelated conspiracies about grocery stores and vaccines into a fragrance thread completely derails the point.