Personally, I would not even want any of these guys to join the train anytime soon, so we can end up giving it to them at a much higher value once they realized it is not a bubble after all. I am not surprised they will keep trying their best to attack it and call it names, but I guess we just leave time to tell the rest of the story.
I'm not even sure I would like these guys to enter bitcoin at all. Just as CME Group announces Futures Trading of bitcoin, it's price skyrockets and we just keep seeing new ATHs. It is official now, the Wall Strees guys will enter the market. This will be great to the increase of price of bitcoin, since more and more fiat will enter into the crypto market, but these guys are here to make money, and not to use bitcoin. For better or for worse this is happening, let's see how BTC handles this.