Original post by TeenPolyglotI've been studying English Language for AS and A-Level (currently in my 2nd and final year), and whilst I resonate entirely with what you're saying, it's necessary to look at what is actually being studied.
Essentially, 'English Language' is, in my opinion, a simplified form of linguistics, and 'language and gender' is within sociolinguistics; this encompasses, equally, accents, dialects, class, age, etc. These all relate in 'how language as a tool can be influenced by various external factors', on a simplistic way. The other aspect, which you'll no doubt study next year, is essentially the History of the English Language. Again, this is overly simplified, and looks at the major events (such as the Great Vowel Shift, the Renaissance period, Samuel Johnson's standardised dictionary etc.). I suppose that the A-Level (and, of course, AS) English Language course is meant to be an introduction into linguistics, though from a relatively closed-minded viewpoint (in my opinion).
That said, an AWFUL lot is placed on gender in the course - it sounds like a similar story for you, but it seemed as though about 80% of the sociolinguistic side regarded language and gender, with a lesser weighting being considered on the other branches. This makes sense, therefore, that you feel like you're "in a gender studies class" - I had, and to some extent do still have, that exact viewpoint.
The thing about the English Language AS Level is that it is, more or less, gender sociolinguistics. As you will know, Lakoff (1975) more or less kicked off the whole gender and language debate, which, as you'll also be very aware, is continuing even today. Within this are the different models - deficit, dominance, difference etc., and a large amount of this is on the precedent that 'men and women speak differently'. It is certainly true that this takes up a large amount of the AS English course. Of course, the counter arguments are presented - Deborah Cameron, in particular, with the similarity model.
Plus, it sounds as if you have a female teacher. On that side of the course, we have a male teacher, so I can't exactly comment on whether I've had the same experience, but I do see where you're coming from - the content in this particular part of the course seems to be predominantly focused on the supposition that 'men and women speak differently'.
So whilst you're totally justified in saying that the language and gender unit seems pointless, which, for the most part it is, you more or less have to just learn it for the exam. If you decide to go into linguistics or English Language at university, it's pretty much just an introduction. As someone who is, it could be said, fairly well-versed in linguistics as a concept and field of study, there is a slightly one-sided, almost biased, view to the course, but this is just, unfortunately, the approach that has to be realised in undertaking this course.
Hope that gives a bit more explanation.
In conclusion [damn, this feels too much like an essay], you're not at all whining, nor are your viewpoints unjustified. It's just the nature of the course, unfortunately.