I am 187cms, over 100 kgs, go to the gym everyday and was never the biggest or tallest person anywhere I have been in China. There are plenty of tall, broad shouldered Chinese men. Sure, the average size of a man in China is around 5ft 7ins, but the average size for a British male is not much more at around 5ft 9ins.
Also, as a straight male, I saw a fair few Chinese men, who, if I was a woman, would probably be attracted to. What expat women need to straighten out within themselves is the fact that there are men who are more than ‘good enough’ for them to date who happen to be Asian.