This strikes me as an extremely weird attitude. The chicken you're eating lived for generally seven to nine weeks, probably with limited or no access to the outdoors and likely in a small cage. It was then transported a fairly long distance with no food or water on a lorry, then killed by either being hung upside down on a conveyor and dragged through electrified water, or gassed (usually with CO2, which is not painless).
This all sounds much, much worse than a fairly instant death almost immediately out of coming out of the egg, to me...
I suppose it's kind of _unaesthetic_, and maybe people have unrealistic impressions of what the lives of the chickens that don't get shredded are like, but I think this is all mostly a perception issue.