At the time
the Panama Hotel was built, there was no illegal immigration. Travel papers were not a strict requirement until last century. The Asian labourers for whom The Panama Hotel was built bought a ticket, got on a boat, and sailed to Seattle.
Most white Americans are descendants of people for whom passports were a strict necessity. Citizenship is a ludicrously recent concept which governments exploit to hold their citizenry hostage to pay taxes, fight wars, and make babies to pay more taxes and fight more wars.
The next time you thank a veteran for the service they tried to provide, ask yourself, did their efforts make you less free?