I don't really disagree with anything that being said apart from the use of the words scam and rip off.
They're a business, trying desperately hard to make money in an incredibly tough market place. I'm really surprised that anyone here is actually surprised that nothing really comes for free.
I honestly wish airlines could make money by offering a nice low fare without any need for extras to top up revenue to try and make a few quid. Unfortunately I live in the real world.