I'm having a hard time parsing this—Rails is something I would consider to be both highly opinionated and widely used, but its unclear where your statement falls. I'm not crazy about some (most?) of the opinions, but that's a matter of some debate.

> Microservices is very, very narrow. Even people working for Fred George admit to that.

Its hard to make this statement without first agreeing to a definition of microservices. I'm not convinced there's wide agreement to such a definition yet.