People always do this stuff with Aikido to try to apologize for it. They take the minority examples of people actually being good and use those to defend it. Even in the shittiest BJJ schools I've been to, there is usually at least one guy who somehow managed to get a little bit good. It doesn't make the school any less shitty or fake. Real martial arts don't just make a few people good; they make everyone good.
When someone asks if your martial art is effective, and you have to respond with a treatise on how your art actually transcends that question, you fucked up a long time ago bro. The answer should just be "Yes" with an immediate demonstration of it.
This is where you are missing the point. You seem to think that people who practice Aikido are, at their core, trying to become the most effective fighters they can be. This is not the case. Think of Aikido as martial technique for vegetarians. A dude that wants a steak, such as you, will look at tofu and say "This isn't a steak; this is bullshit." A vegetarian, on the other hand, will say "Yes, this is something I'm willing to eat" and enjoy it. That primal, meaty flavor you say they're all missing out on is precisely what they're not interested in. (And a rare few of them can grill a decent steak anyway.)
Does that make them inferior fighters? Yeah. But who really cares? They don't, so why do you?