Do you not see a contradiction between that opinion, and your constant complaints about everything you perceive as an infringement of liberty? You see violations of basic human rights in the gun laws, drug laws, marriage laws, and so on ad nauseum, in the U.S., and all over the world. I'm accustomed to hearing that from you, and I very often agree with you. But then you turn around and say that men are fundamentally good.
No, no I don't.
You see, if I believed human beings are fundamentally aholes and idiots that are prone to acts of incompetence and evil, then there'd be no choice but limiting our rights and freedom and having the benevolent few regulate and control our lives. In fact, the whole base of modern progressivism and big government philosophies is that you just can't trust most people. The best example of this is Thomas Hobbes' vision of anarchy where, in absence of a benevolent government, we'd all be swallowed by a storm of violence.
If you look at the history of leftist sociology and politics, it's full of people trying to attack the classical-liberal notion that people are inherently competent to decide in their own affairs. Lester Ward, who wanted government to be run by ivory-tower social-engineers, Thorstein Weblen who wrote books about how the consumers supposedly buy stuff that they don't really need and government needs to direct stuff better, and of course, guys like Marx and Engels.
And people easily buy into this, because it's very easy for people to go 'Sure, I'm smart, but those other guys, they're crazy". I call it the Tech Support Syndrome.