The Scottish Rite references Rosicrucianism in the same sense that it does so with Kabbalah, Confucianism, and others. The Scottish Rite (and likewise Masonry as a whole) do not propagate or promote *any* specific dogma, but does allude to/reference/talk about some of the principles in areas much like the heavy Hermetic influence in the Blue Lodge. It does not teach it as truth, but is more like pulling together ideas from across several ideologies and presenting them to you for your own contemplation. Much like the many references to the KJV Bible in Masonry, yet a Muslim man may be a Mason and still take away important lessons without being asked to believe in Christianity.
As like everything in Masonry, you are not asked to "believe" any of it other than the Supreme Deity, but there is much to be gained by examining other ways of thinking and contemplating on them.
But to alleviate your concerns a bit, pretty much none of those things you listed come to mind when I think back to my Rose Croix degrees and indeed not much Rosicrucianism in general.