Are the English the worst teachers of English in the world?

lt can't be a factor but l would take it as an opnion.Like all other languages,Native speakers are eloquent in speech but need an indepth study  of it(the language) to be experts.

That is totally wrong. I have seen them teaching in secondary schools and universities such as the University of Khartoum and King Fahd University of Petroleum and Minerals.  They are professionals and keen for educating students. I hope our genius Arabic teachers would make Arabic number one worldwide!

You can't generalize. Every rule has  exception. However, generally, they are strict and hardworkers. h

I completely disagree, I've been tutored by a British woman for so many years and I think she gave me the best foundation for English , not my college degree!  I am telling you, they know their stuff!!

I would agree with previous answers..I don't think this is a fact but my opinion is that non-native speakers are better teachers because they went through that process of learning...they were a student of language and i think they know better what students need to learn better. I am pretty frustrated that in many countries employers search for native speakers regardless of their education or other criteria. If one speaks a language it doesn't mean he/she can be a good teacher. There's so much more that one needs to be an excellent teacher. By this, they are degrading real teachers. It's sad but it's the truth. I just hope employers will change their attitude, because it will be benefit them, the students ans us, teachers.

The English are not very flexible from my previous experiences. They're a little too stiff.

There is some substance to the crux of your question, I have touched upon, in previous answers, the fact that English people can be very "regionalised" and as such have developed distinctive dialects from their particular region. However knowledge of English grammar transcends dialect and shouldn't necessarily hamper their ability to teach the subject as "dialect" doesn't imply that their English is "corrupted" it simply means that they don't speak the "Queen's" or "Oxford" English. The important thing here is to concentrate on teaching the "proper" way and recognising that you have to overcome any "flaws" in your speech to do this satisfactorily. There is a saying which is also applicable: "familiarity breeds contempt" which means in effect that as we know the "subject" so well, there is a tendency to be "lazy" or "blaise" knowing that we will still be understood by our peers. A non native English speaker will concentrate and focus on their grammar and pronunciation, IF they have been taught properly!!!!

I hate them Britons ! Just Kidding. Well, I worked alongside native speakers from all the English speaking world for almost4 years in the UAE. As a matter of fact, the blame is on the employers because they don't follow a strict criterion in hiring those teachers; a fact that also applies to many Arab educators as well; the employers want a native tongue regardless of their expertise, so you could end up working with a British bakery worker who is now an English teacher in the Arab Gulf !