People arguing against nuclear power for it’s cost, unclear timlines, usually don’t argue for coal, oil and gas.
Wind and solar are cheaper, continue to get cheaper and can be built within years, not decades.

Also, renewables are a proven technology while proposals for new nuclear reactor tech are often never been deployed successfully (as in running continuously and actually contributing to the grid).

Also, it’s not even that stable. France had to import power from Germany’s (renewables) because half of their nuclear reactors were failing in 2022. [1]

[1] www.nytimes.com/2022/…/nuclear-power-france.html