It isn't so much opinion as fact. There is a reason why many vets will no longer declaw cats, and chances are there wont be any willing to torture animals in the future.
The last cat my mom had declawed hung himself on our fence trying to escape a dog that was chasing him. Without the claws, he couldn't get up the fence properly, and then couldn't get purchase to free himself. The cat slowly strangled to death.
But yeah, it's just "opinion".