During an impassioned speech at the Republican National Convention on Monday night, Aug. 24, Maximo Alvarez, whose family fled communist Cuba issued a stark warning against socialism.

Alvarez fled Cuba with his parents at the age of 13 as Fidel Castro and his communist regime took control of the island. In his speech, Alvarez noted that history is now being “rewritten” in the United States as Democratic presidential nominee Joe Biden and the left are “mostly concerned about power.”

“I am here to tell you: We cannot let them take over our country. I heard the promises of Fidel Castro, and I can never forget all those who grew up around me, who look like me, who suffered and starved and died because they believed those empty promises, they swallowed the communist poison pill,” Alvarez said, reported the Western Journal.

“But the country I was born in is gone, totally destroyed,” he said. “When I watch the news in Seattle, in Chicago, Portland, and other cities, when I see the history being rewritten when I hear the promises, I hear echoes of the former life I never wanted to hear again. I see shadows I thought I had outrun.”

Biden did not address violent protests during his speech at Democrat National Convention last week, drawing criticism from Republicans and news organizations.

Left-leaning Joe Biden

As Biden tries to secure voters who support his former rival Sen. Bernie Sanders (I-Vt.), he has moved farther left than ever before by aligning himself with Sanders’s agenda items. However, more than a thousand delegates voted against the decision to approve the Democratic Party’s official platform. Even though it’s widely recognized as the most progressive Democratic Party platform in years, those votes showed that Biden leaning further left is not enough.

“Biden has already embraced socialism and it’s still not enough for the left-wing extremists in his party. This week, Americans will witness a unified Republican Party standing alongside President Trump’s America First agenda. The choice couldn’t be more clear this November,” Trump campaign deputy press secretary Ken Farnaso told Fox News.

Alvarez, the founder of Sunshine Gasoline Distributors, said he is “grateful” that he was “able to build my American dream through hard work and determination.”

“If I gave away everything that I have today, it would not equal 1 percent of what I was given when I came to this great country of ours: the gift of freedom. Right now, it is up to us to decide our fate and to choose freedom over oppression,” Alvarez said.

Alvarez noted that President Trump “may not always be politically correct,” but most important is that he puts America first.

“You and I will decide. And here’s what I’ve decided. My decision is very easy: I choose President Trump because I choose America, I choose freedom,” he added.