they actully do go to you tube abd theres video ofthe turbo getting this red

There are bearings out there manufactured to handle such temperatures. The clearance in the races and rolling elements fit, are increased allowing for heat expansion, plus. The turbine shaft, bearings and high tolerance parts of the turbo charger are oil cooled. That is that oil feed tube going into the middle housing from the engine. The engine would most likely have and auxiliary oil pump to meet the cooling demands needed to keep the turbo charger from crapping its pants. It isn't possible to have something "seize to a point" either. When something seizes it means it stops moving due to excessive temperature, friction, or pressure.

you sure know your engine bearing