You seem to be quite confused about pensions, not only "old people" have pensions. Actually the vast majority of contributions to pensions funds come from people who aren't old at all and are actively employed.
> If they do not have the higher PE returns, they basically go out if cash in 10 years and everyone would scream bloody murder.
Where would they "scream"? On the internet? And who'd hear them? The answer is nobody in any PE cares about anyone screaming.
PE's operations have nothing to do with screaming old people, that viewpoint simply avoids the real issues and replaces them with red herring age baiting.