You go away from arguing about the topic on hand and instead proclaim that all your opponents arguments are not valid. It is basically a "You are stupid and I do not have to listen to your points".
Further true rationality does not define any goals, because it is just about using reason to come to conclusions or for deducting how to best get to a goal. People that claim to be ideology-free are very dangerous, as they are not ideology free, but cannot accept people seeing different goals.
You can see this romantic view of science in a lot of nuclear power advocates. Nuclear power has, standing for progress and a representative of science, become the goal in itself that is needed to be protected.
To come back to the dumping of nuclear waste: For a while that practice was not even illegal, contrary to what you claim. Nuclear power leads to nuclear waste, which has to be handled properly. Because that is expensive, there exists a high probability for improper handling to happen. Given how often improper handling of nuclear waste has happened, it seems like a systematic problem that is also very likely to happen again, as nuclear waste is an issue that stays for a very long time, which probably also means different political systems.
Your argument that improper handling is only the fault of the bad actors that in the end acted out the dumping is invalid. It ignores on one hand, that the responsibility for toxic waste lies with the producers. If they did not take care for a proper disposal it is their fault. On the other hand it ignores the reasoning of the people that do the toxic waste dumping. Usually that happens in poorer regions and people do it simply because they have no alternative way of earning money.
