He definitely sacrificed his game a lot.
But I remember looking back at his Toronto stats the first time I delved into this subject and being surprised. They were very good, but not elite. Certainly not what I perceived them to be when he originally joined with Wade and LeBron.
Bosh was a perennial all star, but he never made an all-NBA team. I just don’t see how he would have made them jump to superstardom playing a dying position without challenging for scoring titles.
He was very good, but I just don’t see him ever elevating to superstar status.
He improved every season in Toronto and just when he hit his prime, he joined Lebron and D-Wade.
He had averaged 24 points, 10 rebounds and 2.4 assists his final season in Toronto. His numbers dropped significantly beginning the first year in Miami.
I don't know if he would have reached full superstar status.
But considering he was just entering his prime, coming off his best season and was improving, I bet he'd have at least come close.