Not quite correct. Ideologies didn't happen "suddenly and for no reason at all." In 18th century, as a direct consequence of the invention of the rifled firearm, ordinary citizens of first-world nations had to be given political power. If they weren't, they simply took it. With this accomplished, the inevitably had different opinions on what the state should do. And suddenly those opinions mattered. People couldn't just vote their ethnic interests, because they lived in ethnically homogeneous societies. They couldn't vote their religion, because they lived in religiously homogeneous societies. The opinions weren't about which ethnic or religious interests the state was to serve. Everyone agreed on that. The opinions were about how best to serve those interests. Those opinions were important. So those opinions needed names. This is why socialism, capitalism, communism libertarianism, and so forth were all "invented" in the 18th and early 19th centuries. They sprung into being because they became important, and they will continue to exist so long as they are important. If a society is racially diverse, people will vote their race. And eventually they will stop voting and fight, because race doesn't fluctuate between elections. If a society is racially homogeneous, hut religiously diverse, people will vote their religion. If a society is racially and religiously homogeneous, then people will have and vote ideologies. In the future, one of two things will happen. Either the West will expel the influx of foreign invaders, and go back to arguing ideology with other Westerners over tea in outdoor cafes, or it will not, and everyone's politics will just be racism and nothing else, and all the cafes will be closed, enemy storefronts riddled by bullet holes. Choose wisely.