They were stoned to death BECAUSE THEY PREACHED THE "GOOD NEWS". Peter proclaimed the restoration of all things from the beginning (Acts 3:19) and also said he was doing as the prophets had from ancient times.
Stephen was stoned because he spoke against the religion of the Pharisees, not because he preached helfire and brimstone.
Jesus does love everybody, and everybody will answer for their sins. Some will answer, Lord, Lord, didnt we prophesy and cast out demons and do many mighty works in your name and he will answer, depart from me you lawless ones I never knew you, for I was thirsty and you gave me no drink....
Some will answer, "Praise your holy Name my Savior and Lord, and He will hear their praise."
Some will weep and gnash their teeth, because of the wicked things that have done and said against God. But eventually, "Evryknee shall bow and every tongue confess that Jesus Christ is Lord to the glory of God the Father."
"For as in Adam all died, SO ALSO IN CHRIST ALL shall be made alive."