Totally agree where at least part of the blame lies - I'm not a denier of our culpability due to foreign policy disasters.
Having said that Europe at least is doing as much as it can to alleviate the resulting humanitarian mess without necessarily looking to address the causes.
I dispute strongly that no-one cares. I also think your point about foodbanks is rather strange - what else are good meaning people meant to do other than provide charity to fill the void caused by inadequate social care provision? We can argue that they/we should spend our time changing the system but at the same time there's an immediate need that needs fulfilling.
Because we are fueling the systemic problem. What we've done - and earlier in the day I might have said virtue signalling, but some people donate anonymously so that isn't true - is create dependency from a group of people who are so marginally removed from ourselves. Our 'don't worry, we'll take care of you' will work once... twice... a few times in and it feels less like charity and more like shackled patronage. We've made our bread, and now all we are doing is breaking off a bit and giving it over to someone hungry, rather than (if I can stretch the metaphor) letting them use our ovens or teaching them to make their own. I'm not saying abandon, I'm saying we (everyone) should be thinking of solving the problem rather than "filling a void".
I'll give you a macro example. You look at Live Aid - the money that got pumped into the African continent, often donated by good meaning people trying to fill a hunger void, ended up in the pockets of warlords and corrupt officials, destablising further a volatile region. But we couldn't insist on how that largesse was spent, as that was (rightly) a little too close to imperialism.
What the Chinese have done, however, is understand that they need the mineral resources in Africa. So they've obliquely gone in, use local knowledge of the climate / geography, predominantly used local labour and essentially formed a two-way trade relationship. I don't dispute that they are the senior trading partner.
When Mutti and Hollande and Cameron took the populist approach to economic and social policy - forgetting completely that populism is like fashion, transient, quick to change direction - they attempted to apply short term fixes to macro issues. All three thought nothing of the long term, merely keeping themselves in the gig a bit longer. But we've all let it happen. We've all broken a little of our bread off for the vulnerable rather than helping them (and us) solve the major issues. We've retreated from reality.