Why do Leftists support this?

Why? Because Europeans were colonizers? Of corse they were. So was everyone else. The history of the world. Letting another culture colonize your lands is weak. The weak don't survive.

Europeans did it on a much larger scale than any other culture, they are the main culprits of it

Depends on how far back in history you go.

I know that, I'm well versed in history

Then what makes you believe your statement is correct?

In terms of "colonialism" in the way most people are taught in the world(colonialism in the Americas, Africa, Southeast Asia and Oceania during the age of exploration), the Europeans were the main colonizers. Going all the way back to the vikings in Vinland, Europeans have been exploring the Americas(Side note: it is very likely that the first human settlement of the America's after the kelp highway migration during the last glacial maximum, was by Polynesian sailors in Chile, not the vikings and definitely not Christopher Columbus).

The real colonization started with Christopher Columbus though, as the Spanish crown realized the resources and people of of the Americas could be exploited for financial gain to support war efforts against the Ottoman Empire(So yes, other cultures were expanding their territory, but through war. And before you say it, yes the Ottomans were involved in the slave trade)

Even after the Ottomans had been beaten, the kingdoms and empires of Europe continued the exploitation of their colonies in the Americas, Africa, Asia, and Oceania in order to fund conflict between themselves. Those wars then moved to the Americas resulting in the independence of many nations. Many like the U.S continued to exploit the land and the people(And when they killed all those natives with disease, they just bought people from Africa). Then when the remaining natives prevented us from exploiting the land, we just decimated their food sources and forced them to become dependent on us.

The culture of European colonialism in the exploitation of land and people has stayed in the Americas long after those empires left. Also most colonies were not granted independence until after WW2, with again the people and land being exploited to fund and support conflict between European nations(And in the case of most colonies in the old world, the land itself became a battleground for foreign powers)

In conclusion European colonialism had the largest, longest and most consequential effect of any other example.

I believe this is correct

Also ancient empires version of colonialism was more of a conquest of nearby nations than what European colonialism is so they are not comparable

Obviously your indoctrination is one sided and limited to a single focus. All the ancient empires not only conquered but also colonized. Sometimes by depopulating the area they wanted to colonize. Guess how they depopulated areas. The ancient Chinese attempted colonization on massive scales.

You probably support the Muslim colonization of Europe while decrying the evil business of colonization. All nations and empires exploited conquered peoples period. That includes Asians, Africans, Europeans. You focused hate group is noted.

Europeans had better technology and were better organized. The English were strong. India and China were weak.

So what are you doing about it, other wielding the fearsome sword of memes?

I'm calling out globalists like yourself, Modda. Marxist colonization must be stopped, and Marxism must be purged from all our institutions. Our destiny is the stars. Socialism is holding us back.

What century are you in?
You weren't even around yet when the USSR fell, not that would interfere with you and your cherished Russian bot farm.

Globalist is an anti-Semitic trope. Sure, my great-grandfather was Jewish, but if it makes you happy, go for yours.

I remember when the Berlin Wall fell. I thought that was the end of communism, but I was wrong. I don't know much about the jewish commuity. I grew up in raral NC. Catholics and Jews were exotic creatures we only saw on TV.

The same year computers became a thing, according to you a couple years ago.

Rural North Carolina? What part of South Carolina is that in?
You can't even keep your states straight.

North Carolina is a state the US. It exists next to another state called South Carolina. South Carolina is a smaller state. South Carolina is a powerful state. South Carolina decided to invade a larger state called North Carolina.

Is that a fact? That makes sense, you know, there's a South Carolina hence why there's a North Carolina.

Thanks for the info, really appreciate that. Most of us here in Muh'Merica don't know about these things.