You said it wasn't about morality so I came up with the worst case scenario where risk assessment alone would justify an immoral act as an argument that we cannot dispense with the moral question.
That's a stupid argument. The government is not supposed to make decisions based on what the leaders believe to be right or wrong within a specific code of morals. They act according to national and international law and what's in the best interests of the nation at large -- or at least should be.
The first time the US government decided to create a social safety net out of a sense of moral goodness, they strayed outside their bounds of doing what is good for the nation and instead started replacing churches, charities and philanthropists who were doing that work. Now we can't afford all the "morally justified" programs, and the costs keep on increasing year over year. The government had to raid the Social Security trust fund to avoid taking on massive debt which they never returned as promised. Now we are taking on massive debt every single year, and Social Security continues to be on the verge of being bankrupt.
So, don't try to argue morals where government is concerned. The most moral thing they could do is stop spending all the taxes I ever paid into the treasury on wasteful and fraud-riddled programs.
There's an argument to be made that, in a free and just society, the taxes we pay are immoral. Taxes are theft by force. If I don't agree that my taxes should go toward a 10 year long war in the Middle East, I have no way to stop my money from supporting it regardless of any moral objections i have. If the government is funding abortions and transitioning minors, I can't stop my money from being spent for those things even if my moral code tells me it's 100% immoral.
The government is not in the morality business. The best evidence is how immoral the government behaves on a daily basis with it's lying propoganda, greed and weaponization of the Department of Injustice.