People are terrified of radiation, even if the danger is very low. This means it becomes prohibitively difficult and hence expensive to build and run a fission plant because safety has to be prioritized so heavily. That is even if permission is granted to build in the first place.
I think it is unlikely for irrational fear of fusion to become mainstream like it has with fission.
Because of this I think the barriers to fusion power are at this point lower than the barriers to scaling up fission power.