You must not be very familiar with the impacts of colonialism then. Take your time and read these:

https://www.currentaffairs.org/2017/09/a-quick-reminder-of-why-colonialism-was-bad

https://mediabiasfactcheck.com/current-affairs-magazine/

https://plato.stanford.edu/Entries/Colonialism/

Equating the two is laughable. You are equating

• conquest

• the intentional destruction of a people's civilization/government

• slavery

to

• the people trying to escape said destruction/lingering impacts

• the people moving to our nations for the hope of working for a better life, who have lower crime rates than the existing population, and are a net boon to the economy

It is beyond ridiculous, and a miscarriage of history.