I see this take often and I think it's pretty bad. JSON (data format) and XML (markup format) are very different. Building tools for JSON doesn't change that in

I see this take often and I think it's pretty bad. JSON (data format) and XML (markup format) are very different. Building tools for JSON doesn't change that in any way. And it turns out that both JSON and XML are used for data interchange, and when people have data interchange problems, they build tooling to help solve those problems (like schema validation). That doesn't make JSON "like XML", it just means they're discovering the same problem and solving it for the format they're using.