Sanctions would bring struggles to Lockheed Martin's production line of F-35s and Patriot missiles due to embargo of raw materials and rare earth metals supplied from China. Even if Lockheed Martin succeeds in finding alternate supply lines from countries/companies allied to the US, would they be able to get them at a bargain like they've been doing with China for decades now? I'll answer that for you - NO WAY JOSE. CCP sanctions would drive up costs of production and operation of the F-35, when Congress and the Department of Defense have been struggling for years to bring the costs down since the inception of the Joint Strike Fighter program. How then would you consider CCP sanctions ineffective?
The same logic applies to Raytheon with their need of Chinese raw materials to produce their engines, avionics, mechanical, and missile products. Boeing is already suffering massive loses from delayed deliveries due to COVID, alongside problems with the MAX (might I also add the Chinese Civil Aviation Authority was the first to ground the plane. While the FAA and EASA have re-certified the plane, China has yet to start the process despite Boeing's pleas). These sanctions would essentially see Boeing lose out on the largest commercial aviation market, especially when China has viable alternates in Airbus as well as COMAC.
With all due respect, how does all this appease the US???