DelicateSound;
Judo WILL work on the street–NO PROBLEM! 
But some of the things are just SO hard without the gi, that’s all I was pointing out.
Let me put it this way: All other things being equal, if you put a wrestler against a judoka without the gi the judoka will lose, and vice versa when the gi is on. Totally hypothetical, as there is no such thing as “all other things being equal,” but you catch my point.
I personally consider the uchi-mata a “wrestler killer,” when the gi is being worn, because the wrestlers stance is more crouched over, and that’s PERFECT to get loaded and dumped.
Without the gi, judoka tend to be HIGHLY susceptable to leg attacks because they don’t see them often and because you can’t use that nice grip to stiff arm the opponent.
As far as “what would I do against a grappler?”
I’d poke him in the eyes, knee him in the head on the way in, execute a limb destruction or elbow the base of the neck or spine as I sidestep out of the way… and I would do all of this without attending to my own balance first
Ok, SERIOUSLY–Judo and wrestling are kissing cousins and some minor adaptations need to be made to no-gi. Here’s the thing: You don’t KNOW if the guy that decided to fight you has experience grappling or not… so, your makikomi MIGHT work… your Tani-Otoshi MIGHT work, etc, but there are more adaptable throws that are just as good–IF I were a judoka trying to execute on an opponent w/no good handholds, I would go with the hip throws and their variations, and some of the backwards trips where you are in tight.
This is what the gi allows you to do in judo-- from a DISTANCE, you can control your opponents balance. Without a gi-like article of clothing, you have to shut the space down in order to do the same thing, relying on underhooks and overhooks, etc, and that makes things like O-soto-gari a little harder because at that distance, it’s practically a half-hip throw anyway. Or take tai-otoshi–without the balance broken hard to the forward corner getting them to “throw themselves” over your planted leg is really hard… and if you can’t do it from a distance, then you’ll be in tight, and you won’t have the space to break their balance properly… and the backstep you do to execute it will turn it into a hip throw from that range. The bottom line is that wrist control and arm control just aren’t good enough to break balance unless you have an unearthly strong grip. Think about trying to do hiza garuma or hirai tsuri komi ashi or de ashi barai (or is it harai)without a good pull from a distance on the sleeves and I think you’ll understand.
This means that hip throws, ura-nage, fireman’s carry (kata guruma), etc, and a few of the back trips are your best bets–all of them can be executed in the “underhook/overhook,” range of grappling. I’d avoid the sacrifice throws, just for the record. Why go down if you don’t have to?
And remember Professor Ed Malley’s Mantra-- “If at first, you don’t succeed…punch him in the face and throw him again.”
From my experience of Judo in Streetfights (shirts as gi’s), I’ve used only a few techniques:
) on another thread.