Holy cow, I guess haters just gonna hate!
Who's to say you (you know who I am talking about) are ever going to have to interact with motorcycles within GT? Honestly never seen NASCAR, rally car, F1, or drift cars forced upon anyone, or intermingled in races. I for one am not a fan of any of those disciplines, but they make the game more appealing to a broader audience and make the game better overall so who cares. I have no issue with there being cars or series in GT that I personally do not enjoy.
PD has already made arguably the best car and the best bike sim on the playstation. I for one hope they do blow everyone's minds and include both in GT6 as it seems to make perfect sense to myself and many others! I will be chuckling inside when it becomes reality and the haters all are crying on each others shoulders about it.