Is there any way to use a touch screen monitor to CONTROL an Android tablet through USB?
As far as I know, no Android devices ship with drivers for a USB touchscreen monitor. To make this work, you'd have to find or write drivers for Android, and they'd probably be specific to the type of monitor.

In the first instance you could approach the monitor manufacturer and see if they know of a driver for Android, or are willing to give you the datasheets you'd need to write one.