The Egyptians wanted to exterminate the Hebrews because they were afraid of their growing numbers (Exodus 1) but it backfired on them (Hebrews continued to grow, their percentage of the population shrunk). Same seems true in the USA — white elitists and even white conservatives often see birth reduction in positive terms yet the people doing most of the birth controlling and abortions are white and of a middle income background.
None that I know of. What "conservatives" have you been talking to?