It's actually quite hard to build a boom tanker; Boeing's most recently one has been a disaster for the company. https://en.wikipedia.org/wiki/Boeing_KC-46_Pegasus#Flight_te...
"If Boeing can't do it, it must be hard", is that what you're saying? Are you implying that Boeing is better at building aircraft than Airbus (or really anyone else)?
"If Boeing can't do it, it must be hard", is that what you're saying? Are you implying that Boeing is better at building aircraft than Airbus (or really anyone else)?