In the history of world there has always been hate. Hate has spurred war after war. It has been the focus terrorism and been the cause of taking the lives of millions and millions of innocent people. We can't do anything about the hate that has happened in the past besides learn from it, remember it, and do what we can to prevent it from happening in the future.
The internet has launched a whole new medium for hate groups to spread their agenda.
The Anti-Defamation League has a good description of internet hate below:
Internet Hate describes the rapidly expanding practice utilized by racists and extremists to place anti-Semitic, racist, and other hateful material on the World Wide Web. The growth of the Internet has enabled bigoted and sometimes violent messages to reach a much wider and broader audience than ever before. Consequently, these messages of hate have become widely accessible online - in homes, offices, schools, and libraries.
It takes minimal computer skills to create a website about anything and these hate groups are using the internet medium to the fullest. Though these hate groups are still a minimal percentage of the population, they can now more easily find people who think like they do. These extremists can also hide their identity with different e-mail addresses and screen names, giving them freedom to attack those who they hate without any worry that any one (family, friends, neighbors, coworkers) will find out who they are. They can hate anonymously, and that is very dangerous.
The Southern Poverty Law Center (SPLC) has released an issue of Intelligence Report titled "Year in Hate". In the issue SPLC highlights the rise of hate groups.
The latest annual count by the Southern Poverty Law Center (SPLC) found that the number of hate groups operating in America rose to 888 last year, up 5% from 844 groups in 2006. That capped an increase of 48% since 2000 - a hike from 602 groups attributable to the exploitation by hate groups of the continuing debate about immigration. And it comes on top of some 300 other anti-immigration groups, about half listed by SPLC as "nativist extremist," formed in the last three years.
At the same time, FBI statistics suggested that there was a 35% rise in hate crimes against Latinos between 2003 and 2006. Experts believe that such crimes are typically carried out by people who think they are attacking immigrants.
The debate about immigration reform has fueled a lot of fire among Americans, including anti-migrant groups. These groups hide under the pretense of keeping America secure from terrorists while in reality they have a hidden racist agenda.
"If the Jew government waits, and hell breaks out here in the USA, our citizens will not be asking to see any documentation," added Michael Blevins, the Florida state leader of the neo-Nazi American National Socialist Workers Party. "They will go after anyone they think an illegal alien based on race first."
[Federation for American Immigration Reform (FAIR)] has also promulgated the theory that Mexico is involved in a secret plot to "reconquer" the American Southwest.
"You need to understand that WE ARE AT WAR RIGHT HERE IN AMERICA," is the way another nativist group, the Nebraska-based United Citizens of America, put it. "We are being invaded by a foreign country and we are being betrayed from within. Our government, from top to bottom, is being controlled by global elites. They have infiltrated our government at ALL levels."
The link for the entire issue of the Intelligence Report dealing with hate, which I urge everyone to read, can be found here.

"The debate about immigration reform has fueled a lot of fire among Americans, including anti-migrant groups. These groups hide under the pretense of keeping America secure from terrorists while in reality they have a hidden racist agenda."
Yes, and in fact, companies like MSNBC help fuel the hatred with message boards like this one:
http://boards.msn.com/MSNBCboards/board.aspx?BoardID=1042
Read it and risk experiencing total disgust.