THE Church Of JESUS CHRIST Of Latter Day Saints by definition is an anti-tyrannical organization, because the Constitution of The United States is considered to be inspired by God by THE Church Of JESUS CHRIST Of Latter Day Saints.
It is safe to say, that many Mormons would consider themselves Anti-Fascists. On the other hand Latter Day Saints do not believe in sedition.
Generally speaking it is through prayer and fasting and living as righteous a Christ-like life as possible, and by having faith, that wicked governments are overturned, not by force of arms, or by riots or by doing any such thing.
The power of God is infinite, and through prayer, and through fasting, Moses was able to free the Twelve Tribes from the grasp of mighty Pharaoh.
Getting God's power, and then causing that power to help liberate those who are captive is the way that God acts among the children of men.
Burning and looting and other forms of wickedness, is not the way to God's favor, and the way to God's blessings.
I do not think that the people that you mention are correct when they say that Mormons are useless.
Have you ever been to Chuck E. Cheese? The person who started Chuck E. Cheese, was raised from childhood as a Mormon, and graduated from the University of Utah. His name is Nolan Bushnell.
Nolan Bushell is also the person that first pioneered and popularized Video Games, many years ago.
The person who started Pixar, and has run Pixar to this day, and is the father of Movie Computer Graphics, is Mormon. And he is in charge of all animation at Walt Disney, to this very day. And his name is Ed Catmull.
The people who invented modern word processing, were all from BYU, and they were led by Alan Ashton, and he and they are Mormons.
Television, Stereophonic Sound, Hearing Aids, the Amplified Electric Acoustic Guitar, were all invented by various Mormons (Philo Farnsworth, Harvey Fletcher, and Alvino Rey, respectively).
It was a Mormon that found and caught Saddam Hussein. His name is Harold Engstrom. He did this while he was a lowly Private in the U.S. Army, and he was not a part of the CIA, the FBI, or Military Intelligence. (Like most Mormons he had been a Boy Scout, and that may have given him a bit of an advantage, in capturing one of the greatest criminals in history).
A lot of inventions relating to prosthetic devices for those that are handicapped, have been invented by Mormons. Many and sundry medical inventions have been invented by Mormons, both mundane inventions, and rather profound inventions as well. (A Mormon by the name of Sorenson, made Billions of dollars by improving medical science, and making medical devices, and improving medical instruments as well, just to name one Mormon.)
Take a look at the guns and rifles that police have. Who do you think invented the guns that they have and have used for many years? The answer is Browning. Browning is the person who made all the major advances in firearms, from hand gun design, to rifle design, etc.
Browning is Mormon. (Even if a gun is not called a Browning, it could have been invented by him, because he worked for many different companies. Sometimes getting credit by having his name associated with the weapon, more than often, not.)
The modern world that you live in, has been profoundly shaped by Mormon inventors. What about Mormon business people? What about Mormon Statesman? What about Mormon Writers? What about Mormon movie producers?
Whether it be the producer of Star Wars (Gary Kurtz), or the Author of the Twilight Series (Stephenie Meyer), or the person in charge of Disney Animation, whose recent hit movies include the Toy Story series (Ed Catmull), Mormons are quietly influencing Billions of people around the World in very profound ways.
People can underestimate the impact that a tiny religion of only fourteen million members, called THE Church Of JESUS CHRIST Of Latter Day Saints, is having in the World in contemporary times, but that does not make that impact any less significant nor less profound.