I don’t know how much of a traditionalist I’d be, but I’d say that the main difference is that both traditionalists and the contemporary Church follow the basic tenet of evangelizing all the nations, while some groups within the contemporary Church follow it by adding the erroneous idea that it’s all good under the sun, all leads to heaven, all it’s holy.
Sorry, but it’s not quite so. Certainly we do have extremists on the traditonalist side (I think, at least) who claim that anything other than X, Y, and Z is simply evil. The Church, being more prudent, teaches that those things which are good come from God and in fact predispose to accepting the Gospel of Christ, the ultimate divine revelation, the ultimate fulfillment of man’s search for God.
That is not to say that anyone can do anything. I think a traditionalist holds to the basic idea that he is drawing others to the Church, not vice versa. That he is showing, like Paul in Athens, how others are close to the knowledge of the true God, the God revealed fully by the teachings of Christ in His Church, the Catholic Church. This is very delicate, and it is easy to be tempted to take shortcuts, to throw away Catholic teachings that are inconvenient, to negate solid, orthodox doctrine in order not to “scare away” those to whom we are bringing the Good News.
I know - I mean, I have read about - other groups, far from being Catholic or, as far as I know, holy - that also have in mind this idea of bringing all together, of this universal goodness of all religions and their lack thereof…we cannot walk that path, because it is no good. We are, like Christ said, the lamp placed on top of the hill. When we reach to others, humbly, we point at the darkness that surrounds us and point at the little lights that everyone holds in his hands, and show them that there is only one source of light, and that this source abides on top of that hill, and that anyone who loves the light is naturally drawn to the dwelling place of the source. This, I think, would be a somewhat traditionalist view - I could be wrong. On the other side, we’d have the groups that place the Church on level ground with everything else, as if the source of light was in some unidentified, invisible high place, and both us and everyone else were desperately looking for it…forgetting that Light itself already made His dwelling place amidst us, and that His Kingdom is already here.
I look forward to read what others have to say on this interesting topic