We had a cat a long time ago and ended up declawing her because no matter how many scratch towers/pads/cat furniture/enticing spray/deterring spray/etc. we bought, she still destroyed the furniture. The plastic tips would come off in a hot second and it was torture to try to put them on her.
It didn't change her personality, and she was hopping up and down off the furniture the day we brought her home from the procedure with no pain. It's really not as barbaric (if done correctly) as the animal rights contingent wants to make out.
Our current cats have also destroyed our furniture, but it's too late to bother declawing them with as much damage as they've done. We will wait until they die and then we are never, ever having cats again. Ever. I'm sticking to dogs from now on.
The current AVMA policy is described here and it's more nuanced than "never do it" -- it discourages declawing as an elective procedure and insists on pain management, but ultimately leaves it up to the professional judgment of the vet:
https://www.avma.org/javma-news/2020-03-01/avma-revises-declawing-policy
One reason that vets will still do it is sometimes it's in the best interests of the cat if otherwise it will be euthanized or put up for adoption (and then potentially euthanized because there are far more cats than there are homes for them). It's not as simple as "rehome your cat!" given the cat overpopulation we have.