Totally. Tinpot dictators getting nukes is nothing to worry about. And the waste can just be handwaved away. After all, they have a storage facility in Finland that will probably come online in a couple of years. Problem solved.
The waste is a fair point - storage isn't a long term solution but then I suppose it can be managed in the interim, not like the effects of climate change.
More nuclear plants means more capacity and diversification in supply chains, i.e. it's easier to acquire technology and supplies through dark channels. That will lead to more proliferation. Where do you think North Korea got its nukes? The answer is Pakistan, by the way.