Dame is special, no doubt about it, but there are certainly players in the last 10 years that teams have drafted that are at least his equal. Even in franchise history, and with as poorly as we've drafted, we've had players of his talent or better. Now injuries destroyed some of those careers, but in terms of special talent, we've had a few.
Walton - arguably the best Blazer ever even if only for a brief time.
Drexler - rose as high as 2nd to the GOAT and took the Blazers to 2 Finals
Roy - what might have been if he had knees.
Oden - Completely imposing and physically dominating, but... (see Roy)
Aldridge - one of the more talented bigs for over a decade....but never a #1.
Lillard - great leader and statistical accumulator, but it hasn't led to the levels of Walton or Drexler.
So it's not like we haven't had uber talented players and with good scouting, proper management, can do so again. It's hard to let go or say good-bye to someone or something we love, but this 'marriage' has run it's course. Now I would be okay with a tank/rebuild where Nurk/CJ/RoCo etc were moved for younger players on less expensive contracts while Dame had the surgery he may need and was out the rest of the year. Get a very good Lottery pick, use that to combine with Dame or trade it for a piece that can fit with Dame and go from there. A bunch of younger players around an older vet like what the Suns did with CP3.
That rejuvenated his career and they should at least be in the Conference Finals for a 2nd year in a row.