In their defense, Robinhood probably lost a lot of users today. I saw estimates that as many as half of their users held some position in GME (which is bonkers if true). They're being raked over the coals on social media, and I'm not sure their PR is strong enough to recover before the IPO. And if there were collusion between Citadel and RH to stop retail trading today, I think everyone has a right to be upset.
I don't have a Robinhood account (Fidelity is boring but reliable, while M1 is my "responsible millennial" play), but I will certainly never open an account with them after this.