What ever happened to all of the rich folk you lived in Chicago and other major cities in the Rust Belt?
They have a lot of advance warning, between the fact those state governments are probably already red if the syndicalists are performing that well and election campaign polling making it very clear this is red country. I expect they move before the shit start hitting the fan since they can afford to do so. They probably lose property they can't move and form a lobbying group in the other factions.
The ones most at threat aren't the ultra rich, it's the middle management who squeezed the workers in their name and the small business tyrants. There's going to be some inevitable amount of red terror in any civil war situation. It may be condoned by the SPA or criminalized but I doubt they can stop all of it. It's not going to be too great at first and if they win they'll probably have to do some self reflection. In the case where Reed was at least legitimately elected, it may end up being a bit nicer since he would probably flee DC with part of the legal apparatus and thus prove more willing to maintain order even against red partisans.
Of course, most other factions probably have similar or worse problems, with maybe the exception of New England.
The thing to remember is that civil wars are never clean. From any side, really.