Hah, I feel the same way some times, though not as, er... genocidal
I don't think Bitdefender is as bad as beasts like McAfee or Norton however. It was relatively low profile except when updating and never bothered me to go premium. It also blocked a ton of bad websites that I didn't need to be linked too. Compared to horror stories from Norton (regarding the fact they have their own cleanup tool for their own software) and McAfee (where on an older computer from 2003 I couldn't even get it to boot without crashing if I didn't update McAfee), Bitdefender was great... except it was just too touchy.
The interface is piss simple and easy to use. Want to scan a file or folder? Just drag and drop. Great. But the settings are as vague and plain as a piece of paper (literally consisting of like... 3 buttons), and the toggle for real time protection sometimes just flipped back magically, sometimes from input lag... other times I'm unsure. I really didn't have issues with over sensitivity before either. Just wierder memory / binary editors an antivirus would naturally be concerned about and things like Sandboxie-- but when you screw with my dorfs I must uninstall you. The biggest problem really was just that when it decided to quarantine / blacklist something, even after adding exclusions and restoring and everything else, it just never seemed to gain back trust or let you use the program in question again.
So yes software firms are scummy, but I don't think Bitdefender is THAT bad. It would be fine, for example, for a far-less computer savvy individual who wants free and up to date protection and who doesn't game much or do any programming or other computer work that requires tools that anti virus gets spastic towards.