Do Cubans immigrants vote red because they are aware of the dangers of socialism/communism?

No. They vote red because they are fascists. Cuba was practically a colony of the USA where almost everything was owned by the US. If you were standing in Cuba prior to the Cuban revolution, you were likely standing on US land.

"Cuban politics remained hostage to the United States, while U.S.companies and investors took control of the major sectors of Cuba’s economy. By 1905, 60 percent of Cuba’s rural land was owned by U.S. citizens or companies. U.S. investors also controlled 90 percent of Cuba’s tobacco trade, the country’s iron, copper, and nickel mines,its railroads, and its electricity and telephone systems…Cuba’s economy exhibited many of the characteristics associated with economic dependency. Three-quarters of the country’s arable land was used to produce sugar, which accounted for 80 percent of its exports. Forty percent of the farms and 55 percent of the mills were in the hands of U.S. companies. U.S. investors also controlled 90 percent of Cuba’s telecommunications and electrical services and half of the country’s railroads, as well as significant portions of the banking, cattle, mining, petroleum, and tourist industries."

— Aviva Chomsky, A History of the Cuban Revolution

Because of this, the Cuban government was basically a US puppet government and did not care about the people at all. Nor was it democratic. Batista was a puppet dictator who cared only about US businesses and not the Cuban people. The Cuban people suffered tremendously due to this.

The Cubans in Florida will tell you how great Cuba was under Batista, that it was a prosperous utopia. These were a small handful of wealthy Cubans living in the capitol. The people in the rural countryside were starving to death, illiterate, diseased, the caloric intake was even lower than North Korea. This was the majority of people.

"the majority of the population was rural and poor — what Cubans called guajiros . Swedish economist Claes Brunendius described a typical guajiro’s life this way: “ He lived in a bohío , a small house with an earthen floor and a roof made of palm thatch. For 90 percent of the guajiros , a kerosene lamp was the only form of lighting, and 44 percent of them had never attended school. Only 11 percent drank milk, only 4 percent ate meat, and only 2 percent ate eggs. The daily diet, which had a deficiency of 1,000 calories, was the main reason for a constant increase in the number of cases of tuberculosis, anemia, parasitic diseases, and other illnesses.”

— Aviva Chomsky, A History of the Cuban Revolution

These people are not representative of the normal average Cuban actually from Cuba. They are crazy fascists who want the same kind of fascist government brought to the USA, they are even far more right-wing than Donald Trump is. Donald Trump is a moderate, a centrist, compared to these Cubans. These Cubans want to abolish democracy and establish a dictatorship like under Batista. They want rural Americans to literally starve to death while the wealthy elite gets to live in castles. They want the government to shoot everyone who disagrees with this. They want to recreate Batista's fascist dictatorship inside of the USA.

These people are evil. 

Cuban immigrants should look into the history of their own country and realize it wasn't socialism but the U.S government performing coups until the Cuban government collapsed onto itself.

"the United States government didnt installl communism and Castro"

U.S Government did however perform coups that led to Castro and Cuba's collapse.  Why do you think Castro was very Anti-USA, things don't 'just happen' like that much like 9/11.

Enemies can be rounded up.  Do you like enemies of the people best?