It kind of disturbs me too but we have to look at this from another angle.
Are we prepared to not eat eggs or chickens? Some may be, but a heckuva lot of others will continue to do so.
It does sound cruel and inhuman but until they can get the breeding process down so as to not produce males, which are virtually useless* in the chicken/egg industry, what else can we do with the unwanted and useless male chicks. Put 'em up for adoption? I wonder if Brangelina can take some of them?
At least it seems to be generally accepted that the method they use is the quickest and most humane possible. Let's hope it is.
And, looking at from another perspective, in the long run, the females don't really fare out much better. A few weeks down the road they wind up cut in pieces and wrapped in cellophane in a refrigerated bin in your local supermarket.
*I'm sure there is a feminist joke in here somewhere, but I'll let it go for now.