A judge can not dismiss a civil suit due to lack of evidence until after the discovery phase since until that phase no evidence is even produced or evaluated. Prior to discovery all that a judge can evaluate are the statement of claims with damages and procedural matters such as standing, jurisdiction, proper service, etc...

There are claims of wrongdoing alleged in the lawsuit, notably that Robinhood has two classes of customers, its users who buy and sell securities using its app, and financial institutions who pay Robinhood for information about those users. The allegation in the lawsuit is that recent trading on GME by Robinhood app users resulted in a conflict on interest towards Robinhood's institutional clients, and that Robinhood halted trading in GME and other stocks to benefit its institutional customers at the expense of its app users. Given that Robinhood has a fiduciary duty to its app users and no such duty to its institutional clients, that conflict of interest was a breach of its duty and Robinhood must be liable for any losses arising as a consequence of that breach.

That is a claim of wrongdoing. In almost any non-trivial lawsuit, evidence can only be gathered after claims of wrongdoing have been made, at which point both parties are compelled to disclose vast amounts of information that could be pertinent to determine what damage has been caused.

Bold claim.

There is a relationship between Citadel and RH and a relationship between Melvin and Citadel.

I want an investigation.

The stock went down 40% after the retail brokers stopped letting GME be bought. It also happened to AMC. Is that not evidence?