I work with at least 20 Labs a day, 5 days a week... sometimes more! There is no doubt that they are THE popular breed. There are easily 10x more Labs than other common breeds that come into the hotel. On top of that, the VAST, VAST majority of these Labs are very badly/randomly/pet bred. Honestly though, out of all of those Labs who are not well bred and who are owned by "average" people, I can't think of more than a couple who had any aggression issues toward other dogs or people. I like that about the breed, a lot!!!
However, me and my co-workers usually sigh when another Lab comes in. Most of them have SA (or just plain hyper, uncontrollable anxiety) and are super dee duper untrained. Most are very mouthy and grabby. Most bark... loudly... and make terrible noises in their room. Like 95%. Most of them are compulsive humpers and will pay no heed at all to a squirt bottle... in fact, most of them enjoy being squirted! LOL. But those are all owner faults, not breed qualities.
I actually love seeing real Lab people. I can tell when some one has a Lab just to have a Lab, and when some one really appreciates and understands the needs and abilities of Labs. I love seeing people who have taken advantage of all of that intelligence and trained their dogs, rather than passing off rude, hyperactive behavior as "personality" (I hear a lot of "Aww, just like Marley & Me... my dog is a huge douche!" minus the last part teehee). I love seeing well-bred Labs, although they are scarce! We get these 3 amazing field bred Labs occasionally, and they are just super sweet and super cool. I can say the same about GSDs, Goldens, Beagles, Yorkies, Chihuahuas and a plethora of other popular breeds who have developed a terrible BYB/PM problem. But Labs are quadruple the popularity of those breeds, and they are obviously suffering for it! At least it's primarily for being bouncy and hyper, and not for being aggressing and unstable. If any breed had to be so insanely popular and badly bred, I'm glad that it's Labs and not Border Collies or Huskies, etc.
I agree that people are rude about lots of breeds. A lot of people think Border Collies are insane. Er... wait.. I can't argue with that! haha. People have told me that it's sad that they breed Corgis to be short, and Fozzie looks deformed. F 'em!