Do you think terrorist organisations use BTC ? Of course no, they are fine with USD. Should we ban USD too?

I always assumed they would use BTC for some of their transactions! Why wouldn't they? You said "Of course no, they are fine with USD" so do you have any evidence that they don't?

Do you really think The Islamic State use BTC to buy weapons on the Dark Web?

I guess you're replying to me. I have no idea, but that seems a non sequitur. Where's your evidence that no terrorist group uses BTC for any of their transactions?