I actually slaughter and butcher my own meat because I feel so strongly about that particular issue.
I know exactly how my steak was kept in life, how it was killed/butchered (and I usually know what it's name was too
I can comfortably say that I look my food in the eye.
But just like any issue, animal cruelty is one pocketed with grey areas, not just black and white.
There are plenty of commercial practices that seem terribly cruel to the average Joe, but when you are shown the alternatives, are often the kindest way to do things. .. and yes, there are some awfully cruel people about too.
But the majority of commercial growers are human with consciences like you and I who care deeply for their charges and take great care of them... Just normal people going about their jobs the best way they know how..
And just like every issue that people feel strongly about, there will always be propaganda and passion-fueled exhibitions. (from both sides)
The best thing anybody can do is to be aware - to support conscientious producers and resalers and demand enforcement/monitoring of regulation.
Vegetarianism works for some people, sure.. But I disagree with the scare tactics and the alarmist garbage that an awful lot of those websites put out.