Indeed! Surely the company that's responsible for building America's only functioning human spaceflight vehicle should be able to make airplanes without any difficulty, right?
Do you mean “non-functioning”? Boeing’s Starliner has failed a number of critical tests needed to safely carry humans. SpaceX’s Crew Dragon would be “America’s only functioning human spaceflight vehicle”, with Orion also in the “nonfunctional” category too.
Indeed, I debated whether to put a /s on there. Boeing's Starliner has been a complete failure and last I heard Boeing was trying to figure out some way to drop out of the program without being seen to be dropping out because at this point it was costing them far more than they could ever recoup from it. Some of the test pilots who'd been assigned to future Starliner test launches have retired already.