Most parliamentary systems have been willing to adapt and change the ways they do things over time. Some, like the UK, have not been constrained by a written constitution that is unbending,.
Again, see my point above about Canada not being the only parliamentary system on the planet---of which I know you are aware, naturally, but you seem to think that they're all similar to Canada. Again: they are not. You've never voted in Japan, or Italy, or...hell, Iraq for that matter. An Iraqi or Israeli election ballot might actually blow the mind of a Canadian, who comes from a country where the electoral system is relatively simple in comparison. Also, not all parliamentary constitutions have been as successful as Canada. Do you see, now, why I have argued with you above? My argument was never "Canada's system sux"; it was that you have been speaking of parliamentary systems as if Canada is the same as all or most of them. Again, that is not true, Ricky. Do a little ORIGINAL research (e.g., not just read a book full of someone else's opinions based on the facts, find the original facts yourself. You're smart enough to do it, and you're kind of wasting your intelligence by totally relying on someone else to say it for you! that is meant as a compliment, not an insult btw.)
Whatever Fukuyama may say, Ricky, that is why it never pays to agree with someone else just because they are a smart person, a professor, something like that. "They're a professor, so they must be right." Nothing against them, they typically are incredibly intelligent people, but still fallible, even when they write books. And for all I know you have misunderstood something he might have said, is that possible? To me Fukuyama sounds like an incredibly smart guy who is "thintelligent" but then again, I admit I cannot pass judgment on him in entirety without having read at least one of his books.
But I refuse to argue about something I haven't read: that's pretty stupid. I refuse to get into an argument about Fukuyama since I have not read him. The paragraph you quoted is mostly rubbish, Americans typically don't regard their system as a miracle (some do, but Mr Fukuyama nullifies his own point by trying to make it a blanket statement). Perhaps the way civics was taught back in the 1950s, yes. But not now I'd more than simply wager. However, if he's saying what I think you are saying he is saying, I do not agree. Here is why.
The US Constitution is NOT and has never been static: over 226 years, the American Constitution--by which I mean more than just the rules written on the actual pieces of parchment, amendments included--has evolved. In a sense, it's not too dissimilar from it's "unwritten" British counterpart. Why? It's not unwritten, but it's ALMOST unwritten. A constitutional lawyer studies a lot more than those four pieces of parchment to get his/her J.D. Just like the British constitution, the massive bulk of the American "constitution" is not in the "basic rules" but in court precedents, judgment and the legislation intended to carry out its basic provisions.
I must admit that a lot of Americans [fallaciously] go about thinking that the present system was actually designed that way. (See my point above!) Three, co-equal branches that check and balance each other, yadda yadda. Not true! It was never designed that way! The present government of the US looks nothing like the one that came into operation when the 100 or so men who sat down to do business in 1789 (the members of Congress, the Supreme Court, the president, the executive officers, etc.) On paper it's the same, but it isn't. That is why you are incorrect when you say it's unbending. That's a complete fallacy, which is why I am starting to question if I should bother to pick up his book of his in the first place. It is possible for a smart person with a well-researched book to still end up being wrong, isn't it?