Visibility enable of multiple objects (imported FBX)

After importing FBX files the visibility of objects is not set in outliner, but under Visibility in viewport properties. So you need to checkmark them here. But, unfortunately alt click does not work on selection of objects.

While this is in my opinion a problem of the importer in the first place, without any option to influence, the problem is really huge. As the items do still render and you need to go through all items in all hierarchies to find the ones.

Does anyone got a script that handles properties on a larger selection or entire scene?