Hahahaha more propaganda. You don't know enough about Karate to make any argument about what's superior or not. Youtube videos are not gospel, they are only a small percentage of the world.
I know that we are a minority, but hopefully a loud enough one to get through the fanboys' thick skulls of the capabilities of true martial arts. Grappling, more-so than just rolling on the ground is included in the study of any martial art when it is done properly. Weapons are also studied when under a qualified and knowledgeable instructor.
EDIT -
My statement of fanboys was not directed at you personally, but at the fanboys of the world. If I were intending to be rude to you I would have used your name, which I did not.
Your very question exemplifies my statement of not knowing enough. It is not intended as derogatory, but simply as a statement.
I know that it may come off as arrogant, or some sort of one-upmanship, when I say you don't know enough. However, that too is not the goal. It is tough being a small group that has to consistently fight to retain, and take back the once respected views of traditional martial arts in a world dominated by a public who's easily swayed through propaganda.
There are so many people in the world who don't even know that they are learning an incomplete martial art, and they blindly pass it on to the next generation, etc etc. There are also those that teach crap so they can make money. This, coupled with the MMA publicity, damages the reputation of REAL martial arts, which is an already dying world.
I have studied martial arts for 20 years everyday, sometimes all day (and I am barely breaking the ice of what is), and have studied many different systems, finding more in common with them ALL than differences. It would take a book to list that out, so I will leave this as a vague statement that there is a lot more in common than people often think.
In reply to your question of what I'd do... I cannot say; because each situation is different, even down to the same attack in the same place, by the same person, twice. There are such minute variances that I would have change my response to adapt to the situation in order to survive. Anybody that gives you a scenario based answer doesn't have enough experience, and it is evident in that very answer!