The core of a Pulsar has never been directly observed. Their makeup is hypothetical. Perhaps an alternative explanation for the observed behaviour would be less astounding... https://www.thunderbolts.info/tpod/2004/arch/040920pulsar.ht...
They seem to overlook the fact that we don't know anything; compared to what is out there our knowledge might approach a millionth of a millionth percent of all knowable things; but even that is just for illustration because if you only take into account the scale of the known universe it's going to be a number so small as to approach 0. We know literally nothing.
It's fine to come up with grand theories of how things work - human imagination is a wonderful thing. Just don't mistake it for facts.