!! Careful to not conflate - payload is not the same as towing capacity. The 2023 Colorado has a payload capacity of 1,310 to 1,610 lbs.

To get much beyond the 1 to 1.5k lbs PAYLOAD capacity, you need to move into a full size truck, ideally an F-250 or equivalent. People putting campers in the back of Tacomas and the like are playing with fire.