A monitor wouldn't have a built-in ISDB-Tb receiver. To me, that's the defining feature which distinguishes between a "TV" and a "monitor": a TV has a built-in receiver for over-the-air TV broadcasts, while a monitor doesn't.

There is an increasing number of monitors running Android.

Projectors are safe for now, but I think it's because they are seen as a niche/hipster thing.

TVs and monitors serve different purposes, as evidenced by them having different features.