I do not understand why folks feel the need to tell others what or how to eat (except for my cardiologist, who I pay to tell me what and how to eat, then I ignore him).
I do have to say, you can be absolutely healthy and live fine as a vegetarian using whole foods and no modern or processed foods, the unhealthy vegetarians are just like unhealthy omnivores, they do not think about what they eat.
I would get a fan and blow the bacon aroma into the neighborhood.