Most of those COBOL jobs were offshored or are now performed by Indian/Asian vendor non-immigrant visa holders imported.
Within hour drive from my house, I can tally at least a half-dozen corporate IT shops that outsourced heavily in this way, axing thousands (in aggregate) of jobs that normally were served by internal/domestic consulting houses.
Yes, on the backend there is still a lot of COBOL, even if it is running on micro-hardware as opposed to the old big iron. Claims adjudication, utility metering, charge card processing, billing for just about any corporation that existed pre-1980, etc.…