No response from recommenders after they agreed to write recommendation letter
You need to move on and find new references, people who actually know you.

Realistically, it's hard to imagine anyone wanting to write an LOR for someone they've never met and know only as a name on a paper they've cited.  But then you further poisoned the relationships by waiting a month to respond to their requests for a draft (of the letter you want?) and CC'ing your advisor on your requests, as if to "report" them for not responding quickly enough.  And who knows what you put in your draft or your "reminders".

If someone did that to me, I'd permanently ignore them.  I certainly wouldn't waste my time recommending them.