Reputation thresholds minimize this problem to begin with. Any remaining problem could be largely eradicated by focusing enforcement efforts on those people instead of exercising hypocritical control over what content the community is permitted to deem worthy.
It's also a community site, not my job. Even if I care a lot, dealing with meta is not worth it in most cases. I look through the close votes whenever I have spare time, and would appreciate if other decisions were also taken in the open rather than by one person who may be especially grumpy that day.
I'm not arguing about contents of the questions - some are stupid and deserve closing/deletion. Just want to make sure those decisions are always reasonable, accepted and possible to revert.
Yes, you absolutely can disagree with and even reverse actions taken by diamond moderators.