Your citation #3 states "In conclusion, we have succeeded in creating an artificial reproductive group that is isolated from the WT group." They artificially castrated a species; that is not evolution.

Citation #4: "The authors suggest that reproductive isolation has evolved in situ as a result of...". Again, not proof.

Citation #5 adds no value at all: "Although the sample of genes characterized thus far by various laboratories remains small, and concentrated in the genus Drosophila, I suspect that these patterns may prove general, although likely not universal. Our recent work, along with that of several other groups, also suggests that the selection underlying the evolution of speciation genes may sometimes assume a surprising form, response to intragenomic conflicts, perhaps involving meiotic drive." Keywords: suspect, suggests, may, perhaps

You may want to believe evolution so badly, but science doesn't have the proof yet, and that is a fact.