Julius Leisure
Pro
It's also highly unlikely. The moment a fleet gets seen from Guam, Hawaii or the South Pacific the west coast goes on high alert. They'd be met with at best a blockade, at worst a wall of fire.
The only way to approach would be through Cuba. And we'd see that too. Outside of nukes, those two oceans are the best defense you could possibly have for a country.
I'd go as far to say they wouldn't even make it past the Korean Peninsula, or even Taiwan.
But let the natsec apparatus tell it, they present a real military threat to the west. America just sees everything through the prism of military dominance - when all you have is a hammer, everything looks like a nail.