Font Book and Trash

First. when FB finds a serious issue, does it not load it?

Next. is it possible to extract a faulty version of a font that has several variations of that font inside.

In the "olden" days with ... was it called "Suitcase" or something like that... we could open a font file see what was inside and remove any variations.

If we can't do that with FB, what does anyone recommend. I have a faulty Bookman Bold, but in my Bookman folder all I see in Finder is:

Bookman

BookmBolSwa

BookmBolSwaIta

BookmCon

BookmOut

BookmOutSwa

So I'm guessing it lives inside "Bookman"

If I can't delete Bookman Bold, then my only alternative is to trash the entire font? Or at minimum Bookman?

This all started because I was reviewing my logs and see a number of failed validations. Oddly, I never turned these fonts on, so it seems like my Mac is checking all fonts whether installed or not? Here's an example:

May 11 12:24:09 stevens-mac-pro mdworker[326]: FontImporter: Validation failed - "/Volumes/New Pro/Users/ss/Documents/FONTS ARCHIVE/FFVortex/F.t1".

So I opened up Font Book and started temporarily loading fonts so I could find the faulty ones and then delete them off my drive. But I'm finding all fonts I remove from Font Book after analyzing them to end up in the Trash. But I guess it's just a copy?

Very confusing all this. Shouldn't be.

S