All fan opinions are basically useless at this point. Only ones that matter as a threshold matter are Jack's, sabres team doctors, and other team doctors.
No trade is really possible until Jack has or schedules a surgery that another team's doctors would agree to let him play with. That may not include ADR.
By all accounts, Jack is demanding a surgery that many doctors wouldn't feel comfortable letting him play again. Those discs can break, and might seriously hurt him in the process.
That's the threshold issue. If it's resolved, we can talk return. If it's not, he's literally a useless $50m liability. So just wait for some medical news, because there's no NHL-eligible player named Eichel right now and there won't be until doctors and player can agree.