FTL is simply not feasible. Not without wormholes. Even then the amount of energy to create a singularity would require the energy of that which produced more than neutron stars.
The energy to condense space-time is unfathomable considering we burn dead animals to produce most of our energy now.
I mean it’s not even about producing the energy to achieve that speed, it’s about having anything man-made that could survive that amount of pressure.
And even then, FTL wouldn’t allow us to get very far considering just how vast space is and how far most of our survivable galaxy is.
We’re stuck for the moment in our neighborhood.
However, there isn’t anything our species can’t do given time, education, trial and error, resources and most importantly the will and cooperation to do so.