Start ignoring the negative news and celebrate the fact that bitcoin is being adopted by big corporate companies.
Big corporate companies like Jose Canseco? I'm not sure what you're trying to prove here.
This guy is irrelevant. As the top comment on his Twitter post points out, his predictions aren't exactly on-par most of the time - he made an incorrect prediction of the gold price as well.
BTC is highly speculative. You don't know how other people will behave, so assuming that they will behave supportively, without doubting yourself at all, is ridiculous.