As you go further back, you'll find a guy named gunslinger-r. He's an experimental Japanese artist with many, many
aliases. Moreover, he probably pioneered the
lolicore genre before the term was even coined.
The person who coined the term lolicore was a /b/ user named
LOLIRIPE, a shitposter who made that kinda stuff.
As a consequence, LOLIRIPE started the lolicore meme, influencing artists such as goreshit and lolishit. From then on, breakcore-y stuff became synonymous with anime and Japanese culture.
And you know how troons love anime.
That's what I think.