1) Chinese made aircrafts have been unproven in actual combat against an actual 2nd tier power less alone the only super power! An example is hardly any major buyers after this year airshow!

2) Even if remotely 50% successful, a conventional fight will be at China's door! China doesn't have a blue water navy yet ... maybe in another 1/2 century. China logistic is too feeble and inept to maintain anything > 100 miles. And we haven't even talk about training ...

3) China's industrial military complex is extremely cumbersome and non reactive for quick turn around and ramp up production when needed!