Why were many russians unhappy with tsar nicholas ii?

1- Tsar Nicholas II and his family lived a life of luxury other's didn't.
2- There was feudalism, the peasants of Russia( which were the largest in populations) had no say in how the government was run.
3- Heavy taxes on peasants.
4- Difficult lives of peasants, little food, hard work for noble men.
5- Tsar put Russia immediately in WW1 (2 million soldiers died in the first years).
6- Romanovs were hated because of Rasputin

Russia was barely progressing along into the 20th century. They were behind economically, industrially, and socially. 
Then, while all of those troubles were ongoing, they ended up in WWI, so they were taking the little bit of prosperity that they had and sending it to help fight a war. The Russians weren't even doing that good a job of fighting, which enraged the people further. 

People have a habit of blaming the person in charge for everything, so the Tsar got the anger.

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b, the anti immigrant fervor