It may depend on the industry, but in tech generally there's not plenty of other fish in the sea - there's a scarcity of qualified candidates but plenty of other potential employers who desperately want to hire.
That's really not true; there's only a scarcity if you insist on locality. There's no shortage of qualified remote workers when you open up your search the whole country or whole world. Employers crying about scarcity are employers who haven't figured out remote working is the future.