I have a lexus and the paint is in mint condition

only thing is the REAR bumper is starting to get all these crack lines and what appears to be fine paint scratches all over. the rest of the paint is very nice no defects.

should i bring it to a body shop and have it painted since these scratches are all over on both sides of the license plate and from bottom of the tail lights to the top, if so how much does spraying a rear bumber typically cost? can they make an exact color match?

seems like many of the lines wont buff out with a rotary at all, the bumber is streaking with lines but no chips or actual paint cracks

what do you suggest i do here?