Yes it’s worth traveling from uk to USA for bbq. Thankfully every usa state has bbq that’s from another usa region. It’s like eating Indian food in London. Every restaurant CAN offer Indian food from the owner’s home region. Or Chinese or most cuisines. I just don’t think there’s American bbq in Europe.
that said, I’ve had brasilian steakhouse cuisine in China.

FlyerTalkers did or still fly to MEM for the bbq restaurant at the Memphis airport.