freichorn wrote: … We have synched our pictures.
By "We have synched our pictures" do you mean that you have used iCloud Photos to synchronize your Photos Libraries with the Library at iCloud.com, or do you mean that you have transferred pictures around in some other way? It would help if you answered my questions.
…When I launch Photos on the Mac with one of the iPhones attached, I see the photos in the Library.
Do you mean that you see the "Import" dialog, like this?

If you are using iCloud Photos to synchronize Photos on your devices, then the pictures should already be on your Mac. In that case you can select them and use File>Export>Export nn Photos to export them to a folder.
If you're not using iCloud Photos, then of course, you have to import them into Photos to use Photos to export them.
I you want to copy pictures without importing them to Photos, then you can use the app Image Capture that's in the Applications folder.
iCloud Photos is clearly the easy way.