While this has been discussed before I think you didn't find prior discussions. Let's go over the issues why it is far from automated.
1. No method to label the mp3.
2. No standard usb turntables.
3. No standard to determine if that's a new track or not.
This is why I find it best to use the capture software that came with the USB turntable and develop a process to get to the final goal.
Once you get your process down, it gets easier each time you repeat it.
what will be the best (free and paid) program to use with an usb turntable to rip records into mp3. I've used a few before but they are not as automated as I would like. I prefer an automated process because it would be for my dad who isnt as technically inclined as me.