Agree 100% too far gone at this stage !Drop it and replace with a healthy tree, or just let smaller trees around it fill in. Feel your pain, red oaks on my property are dying from oak wilt, have at least 9 to remove this year. Nice looking trees one day and two-three weeks later leaves are brown and tree goes bare.
yep , I have various species of poplars that seem to mature quickly . Have a few 24 " that have ice damage limbs that I will be taking down this fall .It’s sad but all trees seem to morph into what we call fire wood. I have a row of tall poplars that 4 need to come down too.
Retired guy from SE Manitoba