We are born guilty before God... Innocence died at the fall,
Consider the flood.. did not God drown all men,women ,and children he had created because they were all guilty before Him? Was that unjust? Can God be unjust?
What men do not like is the justice of God ...the Catholic church always taught that an unbaptized adult or baby could not get into heaven.. That was because of the fall.
I believe I have a just God that always does right.. and that includes the eternity of infants and unborn children
Wrong. The Limbo of unbaptized infants (as distinct from the Limbo of the Fathers) was never more than a hypothesis, never a doctrine (though admittedly a widely accepted hypothesis). And of course "baptism of blood" rose pretty early, "baptism of desire" probaby later but I couldn't swear to it.