@The Harbinger of Ferocity Whilst this is a thread of opinion, I can't help but to feel your post equates to "ew, anime." Overlapping of tropes happens, regardless if you find it worthy of eye-rolling or not. I've seen standard western tropes in anime/manga just as well as you've seen eastern tropes in your tales and stories.
<Snipped quote by PrinceAlexus>
Seems to be common in Slice of Life stuff, to the point where the gay/lesbian, bisexual, etc. usually outnumber the hetero characters.
Not always. Some people just overly forget a charceters genders and sexuality is the sole factor.
In reality, its only a part of a greater whole. Its more about a rounded charceter than a 2D trope. You might have 5-10 main aspects not 1.