Conflicts between cultures

I was looking at the year of 2008 and I saw the problem that Francis Baconmeister with the Night Elves:

Watch more videos of WoW

This is just another example of people from a culture trying to impose their cultural aspects into another culture. The father of Francis Baconmeister Junior made a restaurant of meat, but the vegans night elves didn't like it and processed him. Why can't the humans eat meat if they want? Why did the night elves think their culture was better than the humans'? Why do people force others to do things according to a culture and don't let them have the possibility to choose?