Did they die in vain?

W.N. Nevins in his book Alien Baptism:

“Under bloody Mary, blood flowed from Baptist veins, and Queen Elizabeth followed the example of her wicked father, and like him, banished Baptists, giving them twenty days to leave the realm. For two hundred years, [after the reformation] according to court records, Baptist were persecuted in England.” “Catholics might persecute Episcopalians, and Episcopalians, when in power, persecuted the Catholics, but both joined in their animosity and persecution of the Baptists.... Did they die in vain? You, who call yourselves Baptist today, will you throw away this priceless heritage that they preserved for you at the price of persecution, martyrdom and death? When you do this, you not only brand them as fanatics, but you surrender the principles that differentiates us, and Baptists become on branch of the Universal Church, with no more authority to administer the ordinance than apostate Rome or her daughter, the Church of England.”