What is he talking about? (Evolution)

My zoology teacher and I were having a discussion the other day about the "foundations of evolution" which he claimed were that:

The environment would select organisms with the best genes or adaptations to survive (AKA “survival of the fittest” - microevolution
Sometimes adaptations would allow a new species to arise.
that all species had descended or evolved from a single ancestor (marine bacteria) over time by natural selection - macroevolution

While he agreed with the first two (which I think are terribly oversimplified, maybe even downright wrong), he dismissed the third offhandedly saying that new evidence had arisen showing that it was wrong and that scientists were now agreeing that creationism was gaining leverage. What is he talking about?

I have yet to see any statistics that show that Evolutionary Biologists have undergone a changed and are now teaching creationism or any evidence to the contrary of a common ancestor.

Creationism is absolute bullshit. There is no evidence for it, and no evidence against evolution. However, we've spent 150 years studying evolution; and there's sufficient to call it fact.
I think it is wrong to differentiate between micro- and macro-evolution. They're both evolution, which is one process, not two. While many biologists use this distinction, I think it is incorrect: it doesn't have any biological basis. It makes no sense to divide natural phenomena based on human timescales.
No *real* biologist has claimed that there is any reason to discard evolution, or accept creationism. While the Discovery Institute and other such dishonest organisations attempt to subvert science and reason, they have not been very successful.

The evidence for a common ancestor is astounding: every organism on Earth shares the same genetic material (i.e. DNA/RNA) and very similar processes of transcription and translation. Further, it is unlikely to the point of impossibility that the exact triplet codon mechanism would have evolved twice. There are a myriad of other characters that all indicate common ancestry; if your teacher doesn't accept them, he's unfit to teach.