We all encounter at times fellow humans who want something that clearly is based on lacking information. Of course we respect such things, but only up to a certain point. We often do try to help people see the bigger picture - sometimes we do say "I hear you say that that is what you want, but have you considered the fact that...".
> B. contact with us is likely to be deadly to them.
This can be remedied with technology. A crude solution would be to land in hazmat suits and have a chat. I don't know how we should deal with the bows and arrows though.