Great points, my friend. Let me see if I can clear myself.

I'm not sure art has to be or do anything: respond to social situations, crises, material conditions, etc. This can be a function of art (dadaism, futurism, realism, etc.), but this is not necessary. I think these are demands we are making of the artist and their medium/creation. This kind of questioning--"What are you doing?"--can be useful, but it can also close things up.

Being radically open can be, as you've hinted at, dizzying. I'm not sure if it really has this effect, though. I think people are much more inclined to be closed off than to be dizzyingly free. The latter is a struggle to achieve even a few moments of; the former is our a prior existence, our everyday-ness.

I think my primary thesis here is that abstract art is a confrontation (of course, not everyone wants this confrontation, just as not everyone finds pleasure in reading Joyce or Beckett), but I think we should be open to the effects of this kind of questioning more so than we usually are. Rather than worrying about people getting 'too' lost, I'd say that more often the opposite is taking place.