I picked up fencing in college. I have competed stateside and in Europe. I even coached highschool fencing team for a couple years, it is a lot of fun
I have a set of Triple-edged foils from the 1700s that I picked up in Scotland.
I have never studied Kendo. Though I have trained men who were experienced Kendo swordsmen, in the practice of foil-fencing.
I do not see two-handed great swords as being practical in any context today.
Kendo is about rules of etiquette and honor; the Samurai code. It will not help anyone in survival.
I do see a place for fencing though.
Granted most will insist that firearms rule. So long as you have a firearm [and ammo], they do rule.
But I can fence with a cane. An object jambed through your chest is just as deadly if it is a bullet or a hickory switch.
Plate armor makes foils less effective, but wait, who wears plate armor today? Nobody.
I can carry my weapon, in public, and not offend anyone. No calls to 911, no women screaming. Yet I am a trained fencer carrying a deadly weapon.
Anyone can pick-up a cane and swing it. Only a fencer can parry, reposte, lunge and thrust.
Japanese or European? European.