After I left the movie, I said pretty much the same thing. It felt empty. But when I started to write my review, it began to make more sense as commentary about different themes from nowadays, like immigration, prejudice and misogyny. It's between the lines, I Believe. Nothing exceptional, for sure, but it felt less empty to me.

But I totally understand your feeling.

(PS: sorry for the bad english. A lot of time without practice)