Modernism is rooted not only in pride but in hatred of the Church's History.
Pope St. Pius X explains:
"They [the Modernists] recognize that the three chief difficulties for them are scholastic philosophy, the authority of the fathers and tradition, and the magisterium of the Church, and on these they wage unrelenting war... They exercise all their ingenuity in diminishing the force and falsifying the character of tradition, so as to rob it of all its weight...The Modernists pass the same judgment on the most holy Fathers of the Church as they pass on tradition; decreeing, with amazing effrontery that, while personally most worthy of all veneration, they were entirely ignorant of history and criticism, for which they are only excusable on account of the time in which they lived." -- Pope Pius X
To wage war against the Church's tradition is to wage war against Her history because Her history is found in Her tradition, which is the bulwark of our Faith. Modernism ultimately undermines the very nature of the Church, for the Modernists put their authority on their new man-made religion which has little to nothing to do with the Catholic Religion practiced for the past 2,000 years. While Traditional Catholics are trying to uphold the Church's history, the Modernists want to tear it down by destroying all that the Church holds sacred, including and especially the deposit of Faith. Ultimately, the aim of the Modernists has been to fashion a new religion and a new church, divorced of the True Church that has sanctified men throughout history.
“The customs of God’s people and the institutions of our ancestors are to be considered as laws. And those who throw contempt on the customs of the Church ought to be punished as those who disobey the law of God.” ~St. Augustine
Many Saints have spoken on tradition and the importance of adhering to it, in the same way as our forefathers:
“The best advice that I can give you is this: Church-traditions— especially when they do not run counter to the faith— are to be observed in the form in which previous generations have handed them down… The traditions which have been handed down should be regarded as apostolic laws."
Without question, we are in the final battle, between those who serve God and the Church and those who serve themselves and their God, mammon. The Immaculate Heart of Our Lady triumphs.
~Damsel of the Faith