"However, you cannot argue that there is no need for gay characters unless it affects the story because then the opposite would be true as well. Is there any reason for there to be a heterosexual romance unless it affects the story? Does Weiss's crush on Neptune affect the story? Does Blake's crush on (fuck whats the monkey guys name i cant remember) affect the story?"
Well first of all, I don't think any of us ever said there is any need for there to be a heterosexual romance unless it affects the story. I think you've inadvertently created a strawman. In fact, that was the point I was trying to make: none of it is necessary unless it affects the story. And while Blake's crush doesn't mean much yet, Jaune's relationship with Pyrrha (that's how you spell it, right?) clearly is important as it is affecting both of their characters's development and will clearly continue to do so. I think this relationship is actually important to the story.
But I just don't see the need of just about any of this. Every demographic wants to be represented in everything, but apart from the fact that you have no right to that, it's also often times illogical. As I pointed out before, if there world is anything like ours than LGBT people make up 3.8% of the population. On the RWBY wiki characters page, there are 60 characters in total. This includes characters as minor as Tukson, the shopkeeper, and that dog. That would mean 2 characters would be expected to be LGBT. Now the majority of these characters have only had lines in one or two episodes, if that. It's unlikely that we would have any way of knowing their sexuality so far.
So again, I have to ask, how are they going to establish someone's sexuality without explicitly and blatantly making that statement?
Let's look at the characters whose sexuality we ARE aware of. The answer is zero, technically. Yes, Blake likes Sun, Weiss apparently has some interest in Neptune(?), there's Pyrrha and Jaune (though I don't know if we're certain that she has romantic feelings towards him), and then Ren and Nora appear to be a thing. Yet any of them could be bisexual, couldn't they?
But on the whole, probably fewer than a dozen characters have had ANY indication of their sexuality. As time goes on, as more characters are introduced, and we have more time to learn more about them, I'm sure you'll get what you're demanding. It would not surprise me at all if we've already met the first character that will be confirmed as LGBT.
"Mostly, I'm just disheartened by the negative and rather immature response to this thread."
I guess you could call it negative it you mean in relationship to your point. Most people did disagree. But I don't think it has been very immature. There was that one post where someone implicitly called you an SJW, which may have been jumping the gun, but other than that I think everyone has been fairly objective here. (I think she may have taken your apparent implication that the writers are inconsiderate BECAUSE they are straight males as an attack and thought all bets were offs.) I think perhaps you were surprised to see so many people disagree with you and not feel the need to apologize for it. But you can't be upset with them about that, because it would mean you expected to have everyone agree with your premise instead of having a debate about it.
I think (with that one exception), no one here has any problems with you, LGBT people, or anything like that. We just don't think that it's in any way unreasonable for there to not be a confirmed LGBT character so far. When they do inevitably make a point to include that in the show, I think the only complaining you'll see here is over it's execution. People might be considered that it felt too forced, that it felt too muted, or that it should have been an, but not that it didn't belong in the first place.
I just can't HELP being long-winded, can I?