Final answer:
Russification and Pogroms in the Russian Empire foreshadowed extreme events like the Holocaust, illustrating the destructive potential of runaway nationalism leading to the oppression or extermination of minority groups.
Step-by-step explanation:
Russification and Pogroms in the Russian Empire can be seen as a foreshadowing of later events characterized by extreme nationalism, such as the Holocaust. The policies of forced cultural assimilation and officially sanctioned violence against minority populations, like the Jewish pogroms, illustrate the dangers of runaway nationalism. This heightened nationalism often culminates in severe oppression or extermination of perceived 'undesirable' groups within a society, highlighting the potential endpoint of unrestrained nationalistic fervor.