[francisofascii]

React, Angular, (Vue, and others) "failed" because they are too different and never gained universal adoption, yet they all solved the same problems. At my company I have seen the churn from JQuery, then AngularJS, then Angular, then to Vue, every few years. These were all major rewrites. That's the failure. You couldn't just do a simple upgrade with a few breaking changes. If hiring managers are looking for experienced React developers, but won't accept a Angular dev, (or vice-versa) that is a failure, too. You shouldn't have to "bet" on a technology stack and hope it continues to stay marketable, is the point.