they get lots of big green plants with a few large bland tomatoes, I get plants that look a bit scrawnier, but put out twice as much produce. smaller and uglier than theirs, but the taste is better.
Luckily, the older generation that insisted on pesticides and chemical fertilizers are getting too old to garden, and the younger generations are taking over. My backyard touches 4 other backyards. The ones to the right and right-side back (and mine) are organic, we don't spray for anything. We have tons of bugs, birds and critters. the two yards that still spray look great, all tidy and manicured.. but no bugs and no birds hanging out in their trees. And I get no grapes from my vines because one of them still insists on spraying the blackberries every year, and I get to watch my grape leaves shrivel and die. We've offered to come over and pull them for him instead, but he says this is 'easier'.
If you just pay attention to the growing things around you, you don't need any 'peer-reviewed' article to tell you what's up.