u/Havuluu

I recently bought this Astrophytum myriostigma and while repotting it noticed significant root rot. The whole taproot was rotten and the rot continued in the vascular bundle almost to the top of the plant. Since it now has almost no vascular tissue left, it cannot survive, right? I already got a refund for the cactus, but was thinking whether to chuck it or try putting it in soil.