As the only physical therapist/personal trainer who answered, I would have to agree with a majority of what you all said!!
The training between a physical therapist and a personal trainer is completely different.
One is regulated, the other is not.
One now requires to earn a Doctorate in Physical Therapy, while the other profession, doesn’t require a college degree.
At the end of the day, knowledge is power, the more you have, the more you can help a client.
I think the question is a bold and daring questions made. It would be similarly comparing are physician assistants as good or better at diagnosing conditions then physicians.