Since any videos of anyone non-european will probably be met with nothing more than cries of WEEABO! and shit, here
European practicioners: http://www.youtube.com/watch?v=I_v6FCc0JlI
More german techniques: http://youtu.be/b8dky4r3nOA?t=1m40s
*TLDR : Your idea that spears/longspears (pikes) should not be efficient in 1v1 duels is ignorant of the capabilities and reality of the weapon(s).
I started out by typing some sarcasm, then decided to just say fuck it. You're completely and utterly
wrong if you think you can fight a sword and board or a greatsword user with an 18 foot polearm and not be at a disadvantage. The existence of "techniques" says nothing about the effectiveness in all situations. You can take karate classes on how to disarm someone with a gun, does that mean a bunch of black bets would ever be able to kill a bunch of modern day soldiers with guns? Fuck no it doesn't.
Those videos you linked show nothing about poles longer than 8 feet, not to mention fighting people of different weapon types. They prove absolutely nothing aside from the already well known fact, that there are indeed spear techniques.
The phalanx was effective because you had several other men with you which helped to keep enemies from getting close, because once they got close enough, you were dead if you were still holding that pike in your hand.
tldr: Your delusional idea on the "reality of weapons", that spears/longspears (pikes) should be efficient in 1v1 duels against swords is simply put, fucking retarded.
If you're going to act like an ass, you can expect to get the same thing in return and I'm always more than willing to step in and do this for other people.