AppleScript open vcard files import and delete contacts

Hello there!
I need to help to optimize my apple script.
I need to import some contacts to Address book, and multiply delete by group name

I find solution to import from csv and delete contacts by one, but it so slow.

Maybe I can simulate open vcard, agree to import in Contacts app and then select all contacts in Contacts app like ctrl+A press delete and agree with delete?
AppleScript open vcard files import and delete contacts
 
 
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