Well, there are bad elements everywhere i suppose. Pakistan needs to strengthen its laws and scrutiny of foreigners (Chinese) getting into the country to get married i guess.
Pakistan is not the only neighboring country suffering from this. Vietnam, Cambodia, Myanmar have been suffering from this for years now. This is mostly due to China's decades long one child policy, where boys have been favored by parents and unborn baby girls have been either aborted or killed off(which makes sense in case you have just one chance of having a child and you want a boy but end up having a girl), leading to millions of Chinese men unable to find a wife due to the huge and growing Gender imbalance, reason traffickers have taken things into their hands to make money out of this crisis and start trafficking women across SEA Asia to feed all these single hungry men who haven't had the chance to ever have a girl in their life.
Seems this policy has really harmed the country in many aspects. The Chinese government ought to really revoke completely this law or look into modifying it by allowing Chinese people to decide how many children they want by themselves like in almost every country.
I cant imagine if my government told me i could only have one child and that's it. can't imagine myself without my 3 other children.
Even though i understand China's situation due to their large population.