I never bashed Aikido. My whole point was that Aikido, or any other martial art, can be integrated into any other. Everyone has two arms, two legs, and hopefully a brain (although I'm beginning to wonder about the last bit
)
Anyway, all I said was that Aikido takes a long time to get good at. Whether this is good or bad depends on the practitioner's goal.
And you are right about BJJ and the street. Anyone (BJJ stylist or otherwise), who commits to a clinch by choice could easily find himself skewered by a pocket knife. And that's no joke, as it only takes about 1.5 inches to pierce a lung, which is the stab wound most likely to cause a fatality.
And you will probably get jumped by more than one person, because anyone who looks like they know what they are doing on the ground might engender rage from bystanders, not to mention friends. What will you do when the bottles start flying?
Seriously, this isn't about "my art's better than yours" I'm just pointing out that myopia in the martial arts is bad. You have to take a wider view. There are many ranges in fighting, and despite what some BJJ purests believe, they aren't all always subbordinate to grappling range.
As far as being less physically fit? A fat man with a gun is more dangerous than a fit man with a fist.
A time and place for everything, people.