You’re writing on an English-only forum and in a country where monolingualism is regarded as not only normal but a political matter. And at a time when the public has never been less articulate.
Sure I’ve worked with people for whom English is number two or three and frankly a lot of them speak English better than my fellow Americans who if they do know more than a few hundred words speak in fad-speak, trendy neologisms that seem to origin their spines more their brains.
I teach advanced English in Vietnam, and my students are mostly better at grammar than what I read from most of my fellow citizens.
We’re talking about technical expression, not about discursive narrative. The goal of technical expression is clarity. Logical thought is English’s special virtue, which is why in Japan, the most chauvinistic country I know of, every doctor, engineer and scientist speaks English because their own language is fixated on deference.