Inability to work is going to be a far bigger deterrance to illegal immigration than any kind of border control you can put up. Regardless of all the propaganda immigrants aren't coming into the country in droves to bum around, commit crimes and get free services from the government. They want to be able to work and live a normal life. If you deny them that, they will look elsewhere.
Maybe your idea of afghani culture isn’t exactly representative. Also likely that the immigrants’ culture would differ from that of their native country.
Every time I see a comment like this I wonder if they just don't know that countries like Afghanistan are on an explicit travel advisory list from basically any government, or if you just conveniently fail to mention it since it doesn't fit your narrative. My country - Germany - explicitely requests all Germans to leave Afghanistan at once. Why do you think that is?
We're talking about a country that has been at war for 20 years and is now under the thumb of a fundamentalist totalitarian regime. You don't have to look far to find thousands of examples of afgani people/refugees denouncing the Taliban. Using this as a representative example of afgani culture is at best misleading. It would be like labeling the citizens of North Korean as being culturally against their own human rights and chastising them for that.
> We're talking about a country that has been at war for 20 years and is now under the thumb of a fundamentalist totalitarian regime
Culturally based attitudes to homosexuality have little if anything to do with a people‘s government. As far as I can find polls for it, disagreement and hate towards queer people is incredibly prevalent among their people.