A steelman argument is the opposite of a strawman argument. It's where you imagine the best possible argument from your opposing side (sometimes even better than they themselves can articulate it), an...
If governments could stop Bitcoin by banning it, they didn't need to wait 14 years to do so. Also Quantum computing could be a much bigger risk for nation states than attacking Bitcoin network. There is much more to be worried about like nuclear codes. Bitcoin can be Quantum proof if need be.