The reading reflection of Pa pro -colonialist The reading reflection of a pro-colonialist

I think colonialist is probably the word you are looking for here, it gives a bit more of a political/imperialist tone. Generally after pro we add a hyphen. For example: pro-war, pro-peace...

Looking back at history, those that havere are a lot of invisible lines which/that divide people into many categories. Looking back at history, there are a lot of invisible lines which/that divide people into many categories.

I'm not positive that I have understood what you are trying to say here

Color, religion, gender, belief could be the tipmethods for classifying people. Color, religion, gender, belief could be the methods for classifying people.

In the historical bigger pictures, we could learn how humans classifying different people slipbreak into two parts. In the historical bigger picture, we could learn how humans classifying different people break into two parts.

In the book and combined with my reflection, its subsequent history can be divided into three eras to show how the two main categories are changing. In the book and combined with my reflection, its subsequent history can be divided into three eras to show how the two main categories are changing.

During that time, people classified people as Westin the western or non-western world as rich or poor. During that time, people classified people in the western or non-western world as rich or poor.

The triumph of the civil war had churned the main two categoricales again. The triumph of the civil war had churned the main two categories again.

churned is an unusual word choice here

A new concept was built ascreated of White or Black. A new concept was created of White or Black.

It's not correct or incorrect, but some people don't capitalize white/black here, and some do.

Since Donal d Trump won the presidential seat, the immigration issues hadve been pushed ton the blrink of the social edgeconflict. Since Donald Trump won the presidential seat, immigration issues have been pushed to the brink of the social conflict.

People are tagged byas immigrants or citizens. People are tagged as immigrants or citizens.

My point is there arehas always havingbeen deep chasms between people. My point is there has always been deep chasms between people.

The changes in the world always silently classify people by themselveinto groups. The changes in the world always silently classify people into groups.

No one could avoid the fate of being “sealed into that crushing objecthood”. No one could avoid the fate of being “sealed into that crushing objecthood”.

The use of this quotation vreates a sentence that is hard to follow.