According to my state's wildlife department, there are a number of reasons which might compel someone NOT to trap and release.
1. It is illegal to do so in most states. They must be humanely euthanized or released on your property (what good is THAT?). I may be able to drop a caged rat in a trash can of water but doing that to something the size of a cat would be more than I could handle. It's a job for pros, IMO. (With catalytic converters, a car's tailpipe is slow and inhumane.)
2. By relocating to a rural area, you infect and endanger that area's native raccoon population, as well as people's pets and children, by spreading the urban raccoon's rabies, canine distemper, parvovorus and raccoon roundworm.
3. It may be futile: territories for loner raccoons are so small in suburbia and 'real estate' near a pond so coveted, that your backyard will have a new resident the very next night, as happened with me. More futility: State wildlife experiments have shown that raccoons trapped, tagged and followed electronically have a normal nightly feeding territory of as much as 5 miles. That means if you drop them off 5 miles away they will be back, probably by morning. The state dropped some off 25 miles away only to have some make it back to their home base within a week.
4. It may cause them to suffer. Urban raccoons, accustomed to garbage and pet food, have little skill at hunting and can starve to death if released in the country.
5. We humans have killed off their natural predators, coyotes, so in the country they are easy prey for them unlike the more wary rural raccoons.
6. This really POs local people. I have rural family who say they and their neighbors see this every weekend - not just raccoons and skunks and opossums and groundhogs but boxes of kittens and puppies. Most of these pets make their way to their house and now put them in the position of feeding or euthanizing or letting coyotes shred them for dinner. They take license plate numbers and turn these people in.
This 'as long as I don't see them die" is as cowardly as taking your pet to the pound with the delusion that there is a chance it will be adopted when owner rescues are the first to be killed. Net net: either accept the raccoon or accept euthanasia -- please don't relocate.
Off my soapbox now.