> They are blocking buying, and only allowing selling GME, BB and others. How is this not evidence of a corrupted free market system?
I can almost guarantee you that this decision was made to protect retail clients -- not as part of some conspiracy against them. It's very clear that retail is going to lose their shirts in the end of all of this, and by blocking new buy orders, the brokerage is effectively protecting its naive clientele.
Come back to your comment in a month, and I think your perspective will have shifted.