Pigeonholing used in a sentence

Pigeonholing in a sentence as a noun

The article is pigeonholing a country with over a billion people in sparse categories.

At least from what I've seen, it's more of a decentralization than a migration from SV. No sense pre-emptively pigeonholing!

This blog post seems to be about pigeonholing other people - "John is a bad programmer because he does $x / Mary is good because she does $x".

It's also a shame that we are so utterly unable to be men and women without pigeonholing ourselves and harassing each other over it.

I'm pigeonholing it into a very tight definition, but when sarcasm is used, it tends to be used as a way to put the person using it on a higher pedestal than whomever the sarcasm is directed at. I'm not sure if that makes sense, but think of times when someone acts in a sarcastic manner.

Why are we pigeonholing companies into financial contributions?

When your campaign succeeds, it does so at the expense of pigeonholing the entire issue of unnecessary marriage regulation into the simplistic "gay marriage", and people consider the entire issue solved and look for the next thing to feel progressive about.