Well, again, if the VM is not critical, here is a great KB with steps using CLI to force the VM to shutdown. While CLI is more nerdy and not as fun to look at, it is much more powerful than the web interface GUI.
Fair warning, it takes some time, planning, and I'd document everything as you go, but the KB has good step-by-step instructions.
https://kb.vmware.com/s/article/1004340
It also includes a recommendation that if you still cannot force the VM to shutdown after those steps, to restart the ESXi host completely. If you have to go that far, I would recommend migrating your other working VMs off that ESXi host first so that you're only dealing with one rouge VM (and you can see how it gets migrated off that ESXi during reboot, assuming you're running a cluster and have DRS in effect.