Let them suffer from what they have sown for themselves why should we get involved in first place. Iran had this coming for a long time due to their arrogance and policy of interference in affairs of other nations.
You are completely right, however, we will again be affected by any war on Iran.
They are our neighbors, no matter how disagreeable and treacherous they are.
Pakistan has the most dangerous neighborhood of any country, we are surrounded on three sides by ideologically suicidal states.
This may even be a step in the direction of war on Pakistan. They may be testing our resolve.
We should do what we can to avoid war.
It is obvious now that ignoring Iran and Afghanistan has cost us much as far as geopolitics and allies.
We need to expand our soft power into those countries.
Learning Farsi and Dari is a must, so we can talk to the Iranian and Afghan people to detoxify them.
This is the reason the British banned us from speaking Farsi in the first place.