Reducing it to a "plausible set of excuses", among other things, is what I mean by shitting on other people's passion project. Saying that the "firing unity/unreal/godot" is what I mean by preferring monocultures.

EDIT: Writing an engine is difficult and time consuming, but also rewarding in several ways, and requires a completely different skill set from writing a game. It's incredibly patronizing to call it "an excuse".

This is similar to asking someone making an image editor to "just open photoshop, you're making excuses for not working on art".