Re: What technique would you apply to neutralize Brazilian Jujitsu attacker
^^^^ What Michael said above!
A lot of times it seems as though people set up this bifurcation with Aikido and other martial arts (not you specifically Paul). "It's either Aikido or nothing!!!" or "Aikido or BJJ - I can't do both!" Which is extremely false, as is evidenced by the numerous people just on Aikiweb that do both Aikido and some other art.
Sure it can be frustrating that Aikido does not seem to work that often in a "live" environment, but it's just something you have to deal with.