If the issue is with E3 Visa pilots, then it’s absolutely not a corner case to mention the ‘89 Pilots’ Dispute. The use of scab labor (with fast-track Australian CITIZENSHIP, granting of Australian licences without training or validation) destroyed the airline career path in Australia. It’s the reason so many Aussie pilots embrace the opportunity to come to the US. They’re paid the same as us, so hardly “cheap labor from third world countries”.

Not that many would, but US pilots can (& have) flown in Australia on the local and less restrictive 457 Visa so it’s not a one way street.