It's not just a commercial relationship, Israel is dependent on US subsidies and European trade to fund its war effort, and Europe has shown itself to be very slow at reacting to the genocide.

Effectively Europes stance is funding the genocide. Whether a lawyer would consider this funding is besides the point. I think there are very concrete ways to argue that what Europe does would constitute funding, but I don't particularly care about that semantic argument. The main point is that Europes actions support the genocide.