Look, currently, all that these insects can do is spread misinformation and racism against Indians on the internet. But in the future, they might try to jump the fence into India looking for jobs and economic opportunities, just like Kanglus.
Indian economy will be around 7.5 trillion dollars by 2030, around 11 trillion by 2035 and around 17-18 by 2040. We should start preparing the ground work for what will be necessary immediately if we haven't already.
Make the idea that Pakis are vermin, the lowest of creatures, lesser than cockroaches, maggots, mosquitoes, etc popular among the general public so that when we begin to exterminate illegal Paki migrants it will have widespread public approval and no one will bat an eye. If a conversation regarding Pakis come up for some reason (very rarely among the people I know - usually starts with foreign affairs as a subject in general)