I don't know what Tibetans think because there is no opportunity for them to vote on the subject.
I have never been to Tibet so I don't profess any first hand knowledge. However, Tibet had a fair claim to be an independent country with a distinct language and culture until it was consumed by China under force of arms, at a time post-WWII when there was no great appetite for the other powers to interfere.
It is presented now by China as a fait accompli. Same way it is trying now to present its occupation of islands in the South China Sea.
Personally I do not accept that Tibet is inevitably a part of China. If I accept that then what next, Taiwan? Then the South China Sea. Then...?
I don't see it as a battle on my part. I do see it as an opinion.