Closure does not (always) mean "this question is bad".
It often simply means "this question needs to be improved".
If you think a question is good, don't just instantly vote to reopen.
Try to understand why someone voted to close.
Try to edit the question to improve it, to address the reasons why it was closed.
Try to turn it into something that others with the same problem will be able to find if they search for it, and that those people will find useful.
Try to avoid focusing exclusively on what the asker asks in answers and instead write answers that will be helpful to others with the same problem, while also covering the details specific to the asker's situation, either as a footnote, a comment or a link to another post.
And sometimes closure does mean "this question is bad" (not objectively bad, just bad for this site).
Sometimes trying to help many people means getting rid of off-topic questions even when the asker has a problem you really want to help with.
This is not to say you can't help them by posting an answer or leaving a comment before getting rid of it.
But the decision to keep it, i.e. reopen it, shouldn't be whether or not the question is answerable, but rather whether the question, in its current state (taking the answers that's been posted into account), falls within the scope of the site, increases the overall quality of the site, and will be useful to others.
Sometimes you might not understand why a question is closed, sometimes you might understand but just disagree - that's okay too. We can't all always see eye to eye.
Regarding the current state of affairs:
I feel it's roughly turned into a battleground - people who focus primarily on long-term value against people who focus primarily on short-term value. Focusing too much on either one or the other is bad, but having each side see the other as the "enemy" means they likely gravitate towards the edges (i.e. closing too many questions, including good ones, and reopening and answering too many questions, including bad ones) as opposed to trying to find some middle ground or understand the perspective of the other side.
That's not really good for anyone.