Keep in mind that the energy density of nuclear fuel is astronomically higher than that of coal, so even if the processes were equivalently wasteful (and I'm fairly certain they are not) coal would still cause significantly more damage. The process also differ significantly:
Uranium is often pumped out of the ground after being chemically extracted.
Coal is almost always carted out after being blasted.
Look into things like lithium mining (for batteries; yes, I am aware that other options exist, but lithium is still a very common one). That one is straight up nasty.
Uranium is often pumped out of the ground after being chemically extracted.
Coal is almost always carted out after being blasted.