The product line was effectively cancelled by the oil crisis of 1973 and severe economic issues in the mid 70s. It had nothing to do with a crash (of an airplane; there was a market crash involved).

The Concorde manufacturing was cancelled in the 1970s. The crash was in 2000. The last flight was in 2003.

They didn't stop flying due to a crash. It was the money.

Because the 737 Max had type commonality with the old 737s, and because of how behind Boeing was on deliveries, the pilots could still fly on the old 737s and that stemmed some of the loss of money.

Concorde was a very unique plane, the pilots were specially trained for it, and having them sit around was expensive.

You don't know what you are talking about. The product line was cancelled many decades before the crash due to lack of sales. After the crash, the Concorde fleet was modified, returned to service and remained in service for another 3 years before it was removed from service and retired due to the high cost of operation.

The manufacturer withdrew support for Concorde so the airlines couldn’t it anymore

Thus is the might of the “Industrial” part of the Military-industrial Complex, of which Boeing is a significant part and which Concorde was not.