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>slowest modern languages

Horizontal scaling is going to be an issue eventually, no matter the language. You can serve tens of thousands of people off a single django server. Unless you're going to hit a growth limit at specifically 3-5x what a single vertically scaled django server can do, or you know for a fact that webserver compute is going to be the bottleneck, development speed rules all else.

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I’d agree, but I wonder how much faster writing a backend API in Django is compared to using node.

I’ve written a lot of python outside of the web space and a lot of JavaScript in the web space and I can’t think of a time I wish I was writing in python.

Modern JavaScript has a really expressive syntax without the runtime performance hit.

For every comment like this, there is someone who would say the opposite. Why would I write in a language with the semantics of javascript when I could use python?

I'd also argue that syntax-wise they are virtually the same language and not worth really comparing. It's not like either is ML.

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