You can't claim to be an environmentalist and be anti-nuclear energy at the same time

Environmental and Health Consequences of Uranium Mining

Tailing deposits can cause landslides, air contamination, and wildlife exposure. Uranium tailings contain small particles that are picked up and transported by the wind. The radioactive particulates in the air can be concentrated enough to cause health issues including lung cancer and kidney disease. [6] These particles also contaminate soil and water. Furthermore, growing piles of mining debris become unstable and can result in fatal landslides, such as the 1966 landslide of Aberfan, which resulted in the death of 144 people. [7] Tailing ponds pose serious hazards to the environment as well through leaks, in which underground water becomes contaminated with heavy metals. [5] This can lead to the pollution of lakes and rivers. Local ecosystems, too, are harmed and destroyed by waste piles and ponds. Rain can interact with tailings and introduce sulfuric acid in aquatic ecosystems, similar to in-situ leaching. Wildlife exposure can also occur directly through interaction with tailing ponds. In particular, waterfowl often land and use tailing ponds, resulting in dire consequences. In 2008, 1600 ducks flew into a tailing pond and died in Alberta, Canada. [8] Evidently, the repercussions of uranium mining are far-reaching. Certain groups of people, however, are at greater risk of exposure to associated hazards.

The United States has a history of environmental inequity in which people of color and low-income communities are disproportionately subjected to environmental risks and consequent health hazards. Uranium mining is no different. Navajo Nation land, for example, is littered with tailing piles, and the United States Environmental Protection Agency has mapped 521 abandoned uranium mines on the reservation. [5,9] In this regard, uranium mining serves as an avenue for continued environmental racism, and the issue demands close examination and public awareness.

Source: http://large.stanford.edu/courses/2021/ph241/radzyminski2/

There are other types of reactors that can be used that won't generate enriched plutonium

Agreed, the fact that nuclear power plants produce material for nuclear weapons is another strong argument against nuclear power.