Truthfully, I don't actively hate my life. I'd unironically call myself 'white-pilled.'
You'll occasionally see people refer to themselves as that, but, in my experience, they're usually taking a more soy-based approach towards 'being content' with their inceldom. I recall seeing a few memes that labeled the white-pill as being something like 'I'm incel, and that's alright. I'll make do with what I have.' Something about that mindset just seems so... disgusting to me...
I don't think that one should ever 'be happy' to be an incel. If you're REALLY an incel, you're also a loser, because that's something that comes with being an incel. There is nothing positive about being a loser, and, therefore, nothing to be 'content' or happy about. I could go on and on about what the life of a 'loser' is like, but I don't really want to make this too long. Some other time, maybe (I know that SlayerSlayer has some really good posts on the topic, though).
Anyway, what I think the white-pill should mean is the stage that one comes to when you naturally accept your place as an incel and don't necesarily lament over that identity. I, for instance, won't hesitate to label myself as an incel nor introduce myself to others as an incel—online, at least... I'm not dumb enough to do that in real life...
Being an incel is just my life. Being low-IQ is just my life. Being hideous, undesirable, short, and every other negative trait I posses—it's all just stuff that is endemic to my (non-)existance. I don't personally hate myself for those traits, nor do I particularly dwell on them. In the end, I'm just an incel who posts on an incel forum and finds copes to live out his life in relative peace.
Even still, I have never once let go of my spite or envy, and, truthfully, I actually tend to cherish those emotions and build on them. They make me feel alive, but in a way that I can't quite explain...