I wouldn't say uncontroversially. There are political issues around what to do with aging nuclear power plants (see Fessenheim: https://en.wikipedia.org/wiki/Fessenheim_Nuclear_Power_Plant) and whether to invest more. I don't know much about it, but nuclear energy was a talking point during the latests elections.

Personally, I think it would be an enormous mistake not to invest enough to at least assess the feasibility/practicality of cleaner nuclear sources. I really hope France keeps on investing in nuclear energy & research.