You are not understanding the problem.
There is a hardcoded breadcrumb within what I seem to think is within this line of code:
<?php do_action( 'bbp_template_before_forums_loop' ); ?>
I am essentially stuck with the breadcrumb only in the forum root page, I have been able to move it via the user of template files in every other part of the forum. It seems to be impossible to remove the breadcrumb from the homepage using templates.