Let's remove any doubt then. As human beings, we have a social contract to behave and carry ourselves in a manner that does not adversely affect those around us. That is immutable and the responsibility for living up to that social contract falls squarely on the individual.
While we should expect housekeeping to pick the junk up, and there's no excuse for any debris or laundry to sit overnight or pile up over several days, that doesn't give guests carte blanche to use the hallways as their personal trash can or laundry basket. What isn't dumped out there doesn't need to be picked up. Also, at which opportunity would you have cast members "correct" guests, and what else do these guests need to understand better? No urinating in the bushes? No getting drunk, pulling their trunks off and going down the water slide or jumping on the splash pads? I, and most people I know, don't need Disney to tell us how to behave, or carry ourselves in public, and we were certainly brought up well enough not to devolve into crude sloths just because we saw someone do something classless at Saratoga Springs. Mom and dad did a better job.
I'm not sure where you get a "policy of ignoring issues", and "blaming guests" the former a stretch, the latter completely ridiculous (or have you actually heard Disney blaming anyone for junk left in the halls?).
You want to blame Disney for failing to adequately respond to the issue, both by cleaning up after these people, as well as teaching them basic social values their parents should have taught them. All the while, abrogating the responsibility on the part of the guests to live up to those basic societal decency and norms.