Snigger at the idea of someone over-thinking something. No LeQueen, I think you're under-thinking it. 
Which you're entitled to do; but likewise it's perfectly acceptable to question why things happen, and what brings them about. I don't see anyone dissolving into a frothing puddle of anything - rather, in some cases, just disagreeing with something quite strongly.
Deny the origins of widespread hairlessness in women all you want.
I'll repeat - you may not be getting a Brazilian because of porn. Most people probably don't. Instead, they're getting one because it's fashionable to do so. It's how the fashion started that's the issue.
And the whole 'hygiene' red herring? The hair is there to protect the genitals. Women have, amazingly, survived for millennia without removing their pubic hair. I have to wonder exactly how filthy people let the area get before they removed the hair in order for this to be a reason for doing so. 
This is exactly how the societal pressure issue comes into play, as well. Perfectly normal women with perfectly normal bodies being made to feel dirty and remiss for not altering themselves.
It's fine to look at the world in a one-dimensional way and to believe that you're making a decision to do something apropos of nothing, as a lone individual with no outside influences having any sort of impact whatsoever. If you (generic) were getting it all whipped off back in 1810 when everyone else was sporting fulsome bushes, I'd believe you. The fact that you're getting it all whipped off in 2012 along with everybody else and spouting 'hygiene' as the reason to do so says it all. 
Again, I tend my area - I'm not saying don't do it, necessarily. I'm just saying have a teeny bit of awareness. The head-in-the-sand mentality surrounding this is so amusing and speaks volumes.
Tokamak, although I suspect you're being sarcastic much as you may wish to, you can't speak from a bloke's perspective, you can only speak from your perspective.