Most of them are 3rd world countries because of these movements...

There's far too many of these to list, but lets take Vietnam and the DPRK as examples:

• Between 1963 and 1973, The US dropped ~388,000 tons of napalm bombs in vietnam, compared to 32,357 tons used over three years in the Korean War, and 16,500 tons dropped on Japan in 1945. US also sprayed over 5 million acres with herbicide, in Operation Ranch Hand, in a 10 year campaign to deprive the vietnamese of food and vegetation cover.
• US dropped large amounts of Agent Orange, an herbicide developed by monsanto and dow chemical for the department of defense, in vietnam. Its use, in particular the contaminant dioxin, causes multiple health problems, including cleft palate, mental disabilities, hernias, still births, poisoned breast milk, and extra fingers and toes, as well as destroying local species of plants and animals. The Red Cross of Vietnam estimates that up to 1 million people are disabled or have health problems due to Agent Orange.1, 2
• US Troops killed between 347 and 504 unarmed civilians, including women, children, and infants, in South Vietnam on March, 1968, in the My Lai Massacre. Some of the women were gang-raped and their bodies mutilated. Soldiers set fire to huts, waiting for civilians to come out so they could shoot them. For 30 years, the three US servicemen who tried to halt the massacre and rescue the hiding civilians were shunned and denounced as traitors, even by congressmen. 1
• In 1967, the CIA helped South Vietnamese agents identify and then murder alleged Viet Cong leaders operating in villages, in the Phoenix Program. By 1972, Phoenix operatives had executed between 26,000 and 41,000 suspected NLF operatives, informants and supporters.1

Vietnam and the DPRK are absolutely success stories, for breaking their colonial chains, and defeating the most powerful and evil empire in history.

Alse China is not a capitalist country, its a mixed economy with the planned socialist sector predominant, and the communist party standing above the political system.

• The backbone of the economy is state ownership and socialist planning. 24 / 25 of the top revenue companies are state-owned and planned. 70% of the top 500 companies are State-owned. 1, 2 The largest bank, construction, electricity, and energy companies in the world, are CPC controlled entities, subject to the 5 year plans laid out by the central committee.
• Workplace democracy in action in the CPC.
• Is modern day china communist? Is it staying true to communist values?
• Didn't China go Capitalist with Deng Xiaoping? Didn't it liberalize its economy? Is China's drastic decrease in poverty a result of the increase in free market capitalist policies?
• Is the CPC committed to communism?
• The Long Game and Its Contradictions. Audiobook
• The myth of Chinese state capitalism. Did Deng really betray Chinese socialism?
• Tsinghua University- Is Socialism with Chinese Characteristics real socialism, or is it state Capitalism?
• Isn't China revisionist for having a capitalist sector of the economy, and working with capitalists? Why isn't it fully planned like the USSR was?
• Castro on why both China and Vietnam are socialist countries.
• Roderic Day - China has billionaires.