Where are you getting this information from? Is it from this study [1]? Real money is also going into crypto [2, 3, 4, 5]. I think it's quite an accusation to say that Tether is always the reason crypto comes back. People also "buy the dip". In some cases, maybe it is Tether, I don't know, but saying in all cases that it is Tether making crypto bounce back seems like a stretch to me.
You assume you know why it bounces back every time after reaching whatever bottom it does, so, I'm also wondering, what do you think triggers it to start going down after reaching its tops?