You are saying no one should have opinions on policy except politicians? Politicians are experts on what policies are good?

I'm saying that nobody like that should have opinions as experts, that claim they know better because they're experts. Their opinions are as good as yours or mine. But you and I don't put out press releases that people pay any attention to, based on our "expertise".

Furthermore, when politicians do it, everyone is aware that they are acting as politicians, and can evaluate them as politicians. The "experts" are pretending that their conclusion comes from their expertise, not from their politics, when in fact all the noteworthy parts of their answer come from their politics.

This is no better than if, say, doctors were to put out a press release that condemns illegal immigration on the grounds that illegal immigrants have a high crime rate, and doctors have to treat crime victims and know how bad crime is.

The robotics experts are telling them "hey this shit is getting really scary and could be stopped if you just stop funding it and discourage other countries from doing so."

Whether that actually works, particularly the "discourage other countries" part, is a question they have no expertise on.