My general idea is that systems should be analyzed holistically and picking out simple categories of parts within the system to assign blame to is refreshingly basic, but also not helpful.
You can watch documentaries on big scale disasters, and while in isolated cases you can blame few specific parties for failing on their responsibilities and therefore it's "their fault", the truth is that disasters occur when many many layers of a system fail, and eventually the whole construction collapses at some point, causing an unmitigated disaster.
In another comment I discussed how we could make a safe Omegle with identity confirmation and AI monitoring and so on. That would help. Not fix all problems, but help significantly. Parenting also helps, and so on. It's not either or, but "and". We can try to sort things by priority, but this is often crude and based on our limited understanding of what is most important.
Also saying "it's the parents" is particularly fruitless, because "parents" is not a specific entity, like government regulatory institutions or large businesses are, which are controlled centrally and therefore they can be designed, engineered, and monitored for specific outcomes.
When we say "the parents" everyone nods along and says "oh yes, absolutely" and nothing follows from that. Everyone believes themselves a good parent who's doing the right things, and to whom bad things won't happen. And when they happen, they see the problem outside themselves. It's also particularly cruel to pin blame on parents who have one or two children, and purely randomly their child may be taken out by freak circumstances. And then what? Make more children?
While a corporation may be involved in hundreds, thousands, millions of incidents, and they can and SHOULD learn from them and strive to minimize them. They have the scale to monitor outcomes, adapt for better outcomes and then monitor that change.
We could say "but OMEGLE was not a large organization with large staff able to engineer their outcomes". Well, then maybe they should've not taken on this project. Going viral by doing the minimum is easy especially when luck is on your side. But doing things RIGHT takes effort, money, time and people.