Son, nobody is taking your threats seriously. Even 10x smaller Azerbaijan is pissing on your threats and would give your shitty military a good spanking.
Iran seriously wants afghanistan to stand up on its own feet. Iran is tired of hosting millions upon millions of afghans fleeing war.... you might think in your wet dreams that you are actually a threat to Iran..
In reality, Iran just wants the drugs and refugees to stop.....
the last time afghanistan was actually A threat to Iran in the 18th century...... a man named Nader Shah took care of that threat permenantly. every single afghan who resisted was slaughtered like pigs....
the hottaki dyansty was ended, and afghans were used as slaves and soldiers for Nader... modern day afghanistan was actually founded by one of Naders afghan officers....
i highly suggest you worry about your banking and healthcare and food... the thing Iran (and literally every single other country on earth) fears about afghanistan is 1.terrorism 2. refugee floods 3. drugs
the major exports of afghanistan. terrorism, drugs and refugeees.. maybe learn to wipe your own rear first, enter the 20th century (21 is still too soon) before trying to provoke Iran?