Your 100mW laser is already illegal. Also, I'm not sure what your argument is. Bombs are not legal, but can be easily put together. Firearms can be bought on the black market. Doesn't mean everything should be legal because they can be obtained by other means. It's a bit like in the other laser thread, people asking where they can get a laser before they are banned. Even if you can buy one now, what are you going to do with it once it is banned? I'm only putting this forward for the sake of friendly discussion

I'm all for astronomers having lasers. I have one myself.