Except it can't be the case. Any suggestion that the police lost control of the fans is a suggestion that the fans were in some way to blame, with Liverpool fans deliberately going where they shouldn't and killing other Liverpool fans.
Despite there being thousands of fans, all trying to get in, no one died outside the ground. The Police took the decision to open an exit gate, not to relieve pressure inside the ground, but as a way to get fans in to the ground quicker.
The Police didn't lose control - The fans went exactly where they were directed.
Had the Police not opened the exit gate, no one would have died. Fans would have entered the ground at a steady rate, and would have dispersed to the different pens within the stand. Some would likely have missed the kick-off, but this could have been avoided by delaying the kick-off by 15 or 30 minutes.
Instead, the Police directed them through an exit gate that, which, rather than dispersing the fans in to all parts of the stand, led to a narrow tunnel leading in to one pen - which disproportionately increased the pressure ahead of them.
Again, the Police didn't lose control of the fans. They just made a bad decision that directly led to the deaths of 96 people. If they had admitted this at the time a few officers would likely have gone to jail (or more likely, been forced to retire on a full pension) and this event would have been put to bed (other than an annual remembrance for the 96).
But afterwards, rather than putting their hands up and accepting they had got it wrong, they tried to cover it up by blaming the fans. They added insult to injury by also claiming fans were drunk, had robbed the dead, had fought with Police trying to save the dying and had urinated on Police officers (all claims the Sun subsequently printed). They then destroyed evidence that supported the truth. They changed witness statements. They lied in the subsequent inquiry (fully supported by the investigating force).
Whatever the general behavior of football fans at the time (I grew up through the era of Football hooliganism, I know fully what is was like), there is zero evidence of any poor behavior by either set of fans at this match.
So you can continue to throw mud in the vane hope some will stick, but the fans have been proven blameless.
You are, as you have already said yourself in several posts, wrong.