To comment on your Cons of Smith:
I went to Smith many years ago and my daughter will be a first year there this fall. Neither of us are hugely political, and I can say from my experience there while, yes, there are a fair amount of very left leaning, highly political things that happen on campus, you can definitely lead a good and happy life at Smith without partaking in them. I was friends with people who were more right leaning, and they, too, were just fine. You can choose to be involved with the political atmosphere, or not. It’s really not a big deal and there will be plenty of other kids who feel the same as you (my daughter in that mix, too).
As far as Northampton goes. It is safe. I would have no issues with my daughter walking downtown by herself if she wants to go to CVS or some other store for something. Would I recommend that she go with other people if she decides to go downtown at night? Sure. But I would say the same for ANY college town. There are definitely characters in downtown Northampton. You just need to learn to walk by them and ignore what they are saying. In my experience there, it’s never been a problem (and I’ve been there at lot in the past few months).
As far as the segregated thing goes, I know that there is a lot of affinity housing, so that may be why you see what looks like segregation within race. Honestly, I think you’ll probably see that to some degree at any campus.
Marijuana is going to be everywhere. It just happens to be legal in MA (or I assume it is given the number of stores we passed on the highway in Springfield). Here, too, it’s something in which you can choose to partake, or not. At any school you fill find kids smoking pot. If it’s not your thing, you won’t be looked down upon. People won’t care if you smoke, or not. Just make sure you put in your housing form that do you don’t want a roommate who smokes.
Feel free to PM me if you have any specific questions. I can also put you in touch with my daughter if you want to chat with another incoming first year.
Unfortunately, I can’t comment much on Carleton as my daughter wasn’t interested in the trimester system, so we didn’t look there. That said, we were there in February looking at St. Olaf, and Northfield is a lovely town.
Good luck with your decision!!