If all it takes to stop Bitcoin is to trade Bitcoin derivatives on traditional platforms, then Bitcoin isn't as resilient, or like some people say "antifragile", as some people though. But I don't believe that neither the Wall Street traders are going to manipulate it any more than the current crypto players are doing so, or that this would cause some irreparable harm. All the additional liquidity can offset the new manipulation, if there will be such thing, so it could be a net positive for Bitcoin markets.
I agree, bitcoin as a derivative isn't as resilient as we thought. It is like the other financial instrument in the market that can be manipulated either by force. However , this in fact the reality of todays bitcoin market. Traditional financial institution will flood the market the soonest possible. And i think, it is yet in the making.