暴力的 is used figuratively to describe the "roughness" of a train of
thought which would lead to blaming children for being bystanders to
Rena's rampage (this is what I have rendered as "cruel")
It's the same word, but from the wrong scene with the wrong tone for the
context.
The file name following the previous line seems to be the correct one
(not sure why this wouldn't have been selected to start with)
Keiichi thinks that the girls (and Hinamizawa in general) don't want him
speaking out or allowing any undesirable outsiders (like Ooishi) that
something might be out of the ordinary.
he really isn't saying that he's well enough to go (and it causes
cognitive dissonance to have Keiichi say this right after saying that he
feels feverish)