Baryonic matter doesn’t have to be free neutrons, cold baryonic matter can be stable we have found it already just as we have found brown dwarfs there just isn’

Baryonic matter doesn’t have to be free neutrons, cold baryonic matter can be stable we have found it already just as we have found brown dwarfs there just isn’t enough of it to make up for the missing mass hence it’s not a likely candidate at this point. PS Protons are also baryons and are stable.