Seriously? Do you have stats, or some form of research, to prove your statement. Or is this part of a broader, anti-carbon diatribe?

I have carbon handlebars on my two CF bikes. I have aluminium handlebars on my steel frame bikes.

There is a difference, but I am not sure if the difference is more due to the frame material than to the handlebars themselves.

As long as you take care not to over torque the stem, carbon handlebars are as stout and reliable as their aluminium counterparts.

Cheers!