No offense intended, sir, but Shiluach HaKan cannot and will not bring the Melech HaMashiach.
Chazal clearly teach that the destruction of the Temple and the exile were both caused by our failure with mitzvot-ben-Adam-LeChavero. Therefore, the Melech HaMashiach can only be brought through mitzvot-ben-Adam-LeChavero. Sorry about that!
If you doubt that what I said is true, then please read the two Torah quotes shown below:
Jerusalem Talmud, tractate Yoma, chapter 1, law 1, page 4B:
Rabbi Yochanan ben Tortota taught:
“…During the era of the Second Temple, the Jews labored to study Torah, and they were careful with [all] mitzvot and tithes, and every kind of good deed was found in them.
However, [the Second Temple was destroyed] because they loved money and hated each other.”
Babylonian Talmud, tractate Yoma, page 9B:
“In the time of the Second Temple, they [Israel] occupied themselves with Torah [study],
obeying the commandments [mitzvot] and performing acts of kindness (chesed).
So why was the [Second] Temple destroyed?
Because of causeless hatred (sinat chinam) that was there…”