Somethings never change. Calvinists are incapable of accepting that others reject their beliefs and are completely intolerant of the existance of opposing thought. Its been around for a long time and is not an opinion shared exclusively by Catholics. I'll let you ponder the following Thomas Jefferson quotations:
"I had no idea, however, that in Pennsylvania, the cradle of toleration and freedom of religion, it [fanaticism] could have arisen to the height you describe. This must be owing to the growth of Presbyterianism. The blasphemy of the five points of Calvin, and the impossibility of defending them, render their advocates impatient of reasoning, irritable, and prone to denunciation"
"Their ambition and tyranny would tolerate no rival if they had power. Systematical in grasping at an ascendancy over all other sects, they aim, like the Jesuits, at engrossing the education of the country, are hostile to every institution they do not direct, and jealous at seeing others begin to attend at all to that object."
"I join you, therefore, in sincere congratulations that this den of the priesthood is at length broken up, and that a Protestant Popedom is no longer to disgrace the American history and character."
"The Presbyterian clergy are the loudest, the most intolerant of all sects; the most tyrannical and ambitious, ready at the word of the law-giver, if such a word could now be obtained, to put their torch to the pile, and to rekindle in this virgin hemisphere the flame in which their oracle, Calvin, consumed the poor Servetus, because he could not subscribe to the proposition of Calvin, that magistrates have a right to exterminate all heretics to the Calvinistic creed! They pant to re-establish by law that holy inquisition which they can now only infuse into public opinion"
"His [Calvin's] religion was demonism. If ever man worshiped a false God, he did. The being described in his five points is ... a demon of malignant spirit. It would be more pardonable to believe in no God at all, than to blaspheme him by the atrocious attributes of Calvin"
Can you say "Inquisition"?
And on his best day Thomas Jefferson was barely a deist. He may have been a capable politician, but he was no theologian nor was he a Christian.
The vast majority of signers of the Declaration of Independence and the Constitution were Calvinist Presbyterians, Baptists, Methodists, Anglicans and Congregationalists.
"Whatever the cause, the Calvinists were the only fighting Protestants. It was they whose faith gave them courage to stand up for the Reformation. In England, Scotland, France, Holland, they,... did the work, and but for them the Reformation would have been crushed... If it had not been for Calvinists,... and whatever you like to call them, the Pope and Philip would have won, and we should either be Papists or Socialists." ~ Sir John Skelton
Men loathe Calvinism in direct proportion to their disdain for the Scriptures. As Spurgeon wrote in his IN DEFENSE OF CALVINISM -- ...
"... It is a nickname to call it Calvinism; Calvinism is the gospel, and nothing else. I do not believe we can preach the gospel, if we do not preach justification by faith, without works; nor unless we preach the sovereignty of God in His dispensation of grace; nor unless we exalt the electing, unchangeable, eternal, immutable, conquering love of Jehovah; nor do I think we can preach the gospel, unless we base it upon the special and particular redemption of His elect and chosen people which Christ wrought out upon the cross; nor can I comprehend a gospel which lets saints fall away after they are called, and suffers the children of God to be burned in the fires of damnation after having once believed in Jesus. Such a gospel I abhor..."
All the gospel of Rome.