Now that Iranian Kurds have become popular and are being covered extensively in mainstream media, people are looking to focus on the Baluch as it is now being discussed to pressure Iran into a land war by using not only Kurds but Baluch as proxies.
Personally, it was the only area in Iran I tried to visit quickly and get out of due to security concerns. Baluchis are not particularly known for kidnapping foreign nationals or attacking them, but the Sistan-Baluchistan area is like the Wild West of U.S. history. Many times when Baluchis were conducting cross-border raids, the IRGC and Basij simply withdrew to their bases in rural areas, leaving citizens and towns at the mercy of Toyota pick-ups filled with Baluch raiders. They moved into the cities, took what they wanted, and left without much confrontation.
What I gather from Baluchistan today is very mixed. Some tribes, whom I know to have a pretty significant involvement in narco-trafficking, needless to say, in cooperation with the Basij and IRGC, have been siding with Tehran, while other tribes, especially those with strongholds in Pakistan, are supporting Baluchis in openly confronting Tehran.
Among elite intellectuals, there is sympathy toward Kurds and their political struggle in Iran, and some degree of low-level solidarity exists, but the ordinary Baluch has little connection to the Kurds.
The important thing is that while a Baluch insurgency can be ignited from Pakistan, and Iranian Kurds are clearly being pushed by Trump, a successful two-front confrontation against Iran could cause significant disruption yet it would not be sufficient, as Iranian Kurds are neither trained nor ready, while Baluchistan has very different dynamics, particularly given its ties to Baluch communities in Pakistan and Afghanistan as well as their complex narco-trade cooperation with Tehran.
Can Iran break apart? Yes, but only if ALL major ethnic groups revolt simultaneously , something that has not occurred in Iran's history except in 1979. Without Iranian Azerbaijan, bureaucracy and trade would grind to a halt; without the Ahwazi Arabs, the core oil industry would nevertheless keep functioning; and without the Persians (including sub-Iranian groups such as the Gilaki and Mazandarani) the nucleus of the state's central command structure would remain intact.
For the Baluchisl's, the best book in recent years is
@karloszurutuza's wonderful piece, highly recommended.