Why are we? Does the House of Saud equal 30 million + Saudi Arabians or 450 million Arabs? What I wrote is well-known. I have the word of the Americans and I know my people better than foreigners.
Besides such moves are clever. Indeed since the Houthi's are not an existential threat to KSA at all then I would rather have some Senegalese going against the Houthi's in what I would personally consider a pointless ground invasion rather than young Saudi Arabians losing lives.
Too bad for you. Rest assured that no single Arab would trade being Arab for being a Pashtun.

90% of all Arabs and people don't even have a clue what that is.
How KSA is ruled it's not your business. The second the House of Saud will become unpopular they will be removed by people like has always been the case with us Arabs. As of now most are very well off. 1000 times more well off than your average Pashtun.
Because they are the most majestic of horses speaking about animals.
Not my fight.
Plenty of Arab countries have autonomous regions. I am familiar with the concept. This was not the point of the discussion though. The fact remains that Pashtuns do not have their own independent country called Pashtunistan and likely never had it. Instead they are part of Afghanistan and Pakistan.
Same story with the stateless Kurds who are citizens of Iraq, Syria, Turkey and Iran.