>>513909926
>But we are capable of shooting their craft down.
I agree. But if they have FTL, they will already have first see and first shoot capability. They can already bend light, they can be completely invisible to the naked eye and every instrument we have. There would be no reason to hide from us. Weapons or no, they could just send small unmanned vessels in to us kamikaze style. They could demilitarize us in 72 hours, probably less. With just a single vessel. That's only scratching the surface of what a species capable of FTL can do. They'd have complete dominion over us, especially before we developed radar and nuclear weapons.