Very few people (in my experience) that say Remington's quality has dropped have actually owned one with a problem, much less more than one to make a comparison. It's a nasty internet rumor for the most part.
Most of the people who have owned a Remington and actually had a problem with it (in my experience) had the problem with the lower end models, like the SPS. Anything other than complete low end you just rarely hear about problems. Even for the low end 700s, I bet you could easily find 50 people or more that are happy with theirs for every one person unhappy with it. 700 tactical and 700 varmint are both excellent rifles and can be had for very little.
Consider this, when I bought my 700 ADL (.30-06) back in 1994/1995, it cost me $380. And we went to like 5 or 6 shops to find it that low. Buds has a 700 sps varmint in .223 right now for $536 including free shipping. Considering it comes with a 26" heavy barrel and mine came with a 22" sporter, that's really not a huge increase in 15 years. Hats off to them for staying competitive. Sure, they might make a lemon now and again, everyone does.
Note: Something like the bolt isn't as smooth as it was to me is a non-issue. Does it shoot accurately and does it shoot reliably? That's all that matters to me.
I don't know all about the politics and corporate buy outs, but I do know Big Green still makes quaility firearms.