We're better off without some of those preservatives. Did you know, in the early 20th century some people were putting formaldehyde in milk to preserve it? The government put an end to that evil practice, and some lives were saved. Mixed bag; some are bad and some preservatives are good. Best to go with natural practices in place for hundreds of years (like salt etc.).
Just because some mistakes were made in choosing preservatives doesn’t mean man-made preservatives are bad. Just because something is natural, doesn’t make it better or safer. Arsenic and mercury are natural.