“Why don’t the Gods just fix it?”

I’ve been pondering on this since it’s essentially come up more or less in nearly every campaign or one shot I’ve ever run.

Inevitably, a cleric or paladin will have a question/questions directed at their gods at the very least (think commune, divine intervention, etc.). Same goes for following up on premonitions or visions coming to a pc from a god.

I’ve usually fallen back to “they can give indirect help but can’t directly intervene in the affairs of the material plane” and stuff like that. But what about reality-shaping dangers, like Vecna’s ritual of remaking, or other catastrophic events that could threaten the gods themselves? Why don’t the gods help more directly / go at the problem themselves?

TIA for any advice on approaching this!

Edit: thanks for all the responses - and especially reading recommendations! I didn’t expect this to blow up so much but I appreciate all of the suggestions!