The Saudis are killing hundreds of thousands of Yemenis and no one makes a peep, but kill one ex-Muslim Brotherhood WaPo reporter and everyone loses their minds.
Get some perspective.
Either the USA Deep State's got rocks in its head, and can't tell friend from foe, or else what they tell the public about why certain countries are enemies and others are allies is 100% bullshit.
Saudi Arabia has been pushing Wahabbist ideology since the 1980's, in the form of armed militias, such as (you may have heard of these guys) Al Qaida, ISIL, Boko Haram, etc.
Someone explained this to me and it made sense: In the Cold War days, if a terrorist group like Red Army Faction, or the Shining Path did something, nobody actually believed it wasn't under the command of Moscow or Beijing - directly or indirectly didn't matter, because this "irregular" warfare was being done to further what they wanted. But today, jihadi terrorist groups that are 100% in agreement with the Saudi elite's interpretation of Islam are attacking the West (the whole world, really) - be it open war in Yemen (which is like the Saudi's Vietnam), or wage covert war in places like Syria and Iraq (through ISIL and other groups). Even the migrant flows from the Middle East and Africa are being encouraged by them, working hand in hand with the USA to overthrow or cause conflict in countries where all those migrants are fleeing from. Look at the so-called "Arab Spring" - where it empowered Sunni jihadists, it was welcomed as "freedom" by the Western media; where it might have empowered Shiites, though, it was violently put down by the Saudis and the West took their side in it.
In this sense, the Saudis are waging war against us; believe me in Europe it is talked about more than here.
Yet Uncle Sam is always letting the Saudis off the hook. The western Neo-Conservative movement is always aligned in favour with two foreign powers (the Saudis and Israelis); the NeoLiberals (i.e. the Democrats) rarely differ - Obama was willing to disagree with push away from the Saudis and Netanyahu's government (hence the Iran nuclear deal which Trump later rejected), but Hillary Clinton was definitely in the same hawkish camp as the mainstream GOP would be. The national security policy makers almost all follow that same alignment when it comes to deciding what wars to get involved in or (or stand back and ignore).
The Saudis never get blamed, and all discussion of how the billions of dollars of oil sheikh money ends up funding terrorism is quashed; they even get the benefit of massive arms shipments, even though a lot of those arms inevitably end up in the hands of the very groups our own troops are fighting against. Sure, the western media is slanted towards focusing on that whole "Iran bad, Russia bad, Syria bad" enemy narrative, like they are some kind of great danger to us, but never takes a serious look at how / why the same political forces here which claim they protect us are in bed with the very world power which most often attacks us.
Hopefully, this whole murder scandal will shine a better light on what MBS and the Saudi regime is really doing in the world, but I would not hold my breath for any change at the top of our governments. The UK and Canadian governments will tut-tut about it, and do nothing. The US government under Trump will deny the Saudis are even really to blame, and do nothing. So unless it causes a war between Turkey and Saudi Arabia, I'd be surprised if it's even still in the news after Xmas.