Wells Fargo literally opened accounts for people without their consent, pushing balances below critical thresholds and causing their customers to lose money they had no right to lose to fees. BoA foreclosed on homes they never should have foreclosed on.

These weren't one-off incidents (Robinhood has not, yet, established a trend), these were systemic issues with these banks. And people still go to them. They're getting new accounts daily, not subsisting off of legacy accounts.