It seems fairly apparent to me that vegetarian != minimally-processed. Definitely a lot of "junk-food vegans" who eat lots of chips and other heavily processed food. Processed also != bad for the environment or for health.

Don't get me wrong -- I think there can totally be some questions around health and environmental impacts of vegetarian/vegan foods entering the market! But I think the mapping between "there are preservatives in it" and "it's bad" is, uhh, not necessarily strong.