'历史没有如果‘Theres no if in history. But anyway, there's what IF when we combed history of the honeymoon era, there were chances PLAAF acquiring western planes, notably F14, F16-79 and M2K. But i'm glad PLAAF held on with domestic development which resulted in arguably best 4th gen heavy fighter (Sino-flanker), J10C developments which build up China's aviation industry that leads to development of J-20s and six gens today. Should PLAAF went with F14 and F16-79, China would be sanctioned by US, plagued with high maintenance cost of F14 and subpar performance of F16-79. And how far can you upgrade Mirage 2000 anyway?
Be glad that Su-27k and J-10 happened.