Type of RV: Since you are living in the RV full time you will want something larger than a class B (a van). There is not much storage or living room in them. The tanks are smaller so you cannot boondock as long. You will want to have a Class C or a Class A and pull a car. You will use the car on a daily basis and leave the RV hooked up. There is a lot to learn before you purchase any RV so go to the Class A and Class C forums and read all you can.
Are we, RV people, looked down upon? are there specific problems with society that I should be prepared for? No, RV people are not looked down upon. You find RV people are generally very friendly and welcoming, and people that do not RV will not give you any problems. They may envy you. I suggest you read messages on the full time forum.
Do RV's get broken into like homes? more or less often? RVs do get broken into but it is not common. You need to be careful where you park.
is it difficult to find repair places since we are bigger and a lot of shops won't want to work on our vehicles? Yes repair shops for RVs are not as common as repair places for cars, but there are out there and not hard to find.
what breaks most often inside an RV? There is no way to answer that. There is nothing that always breaks. There is nothing that will never break. Depending on whether you purchase new or used, you will need to set aside money for maintenance.
I like a glass of wine at night. if I'm parked for the night, is that considered drinking and driving? No
You have a lot of research to do. Go to the forums and read, read and read some more. Go to RV dealers and walk through lots and lots of RVs. Look at the specifications for the RVs you want. Can they pull the car you want to pull? Can your car be flat towed or do you want to get a different car? What brands are the most reliable? Do you want to purchase new or used? Do you want a Class A or C? If a Class A, do you want diesel or gas? Where do you want to park and how long do you want to stay at each site? For example, if you plan to park the RV for 6 months at a time, a fifth wheel may be a better choice.
All of these issues have been discussed in great detail in the various forums.
Good luck.