Exclude all of a taxonomy

Hi your plugin is fantastic! I just have 1 thing I need but don’t know how to do.

I have a taxonomy, lets say its “vendor”. Every time a vendor creates a product their vendor name is attached to a product in woocommerce as a taxonomy.

I can easily sort by taxonomy so I can sort by vendors pretty easily, but as the site admin we also create products to sell and we simply don’t have a vendor taxonomy associated with our products.

My question: is there a way to exclude every product that has a “vendor” taxonomy associated with it simply showing only admin products?

Thanks!