Although that is true, the US imports less and less oil from Saudi. In fact, it’s been dropping steeply since shale oil became cheaper in 2014 and we haven’t imported less from Saudi since the oil glut of the mid-1980s.[1] I don’t think the US stopping Saudi oil imports is going to worry them as China is their major market now and China is another repressive regime. We should stop protecting their shipping though as we do for the entire globe still.
1: https://www.eia.gov/dnav/pet/hist/LeafHandler.ashx?n=PET&s=M...