Haven't we had all this before?
The people you name are doing nothing wrong legally. If you have to work, no matter who you are, you go back to what you know and start again.
.....and yes, before anyone accuses a leasing company of complicity on XL, Viking's 2 x 737-800s are ex G-XLAE/J. Nothing sinister, just a leasing company finding a client for it's aircraft in a difficult market.