Why should we oppose abortion, if it will decrease the population of those who might be our enemies?
You must know, that even for a Ben Noach it's a big sin to commit abortion. A Ben Noach who commits abortion is chayev misah; that's a halacha in the gemara.
However there is a more important consideration. It does not pay even if we could destroy enemies – I'm not saying that that's any consideration at all – but even if somebody would say let the enemies be destroyed, you must know that Jews are being destroyed also because of abortion. Up to recently there were a lot of children in non-religious families, and they came into Yeshivas, and they became frum Jews, and b'nei Torah, and even big talmidei chachomim. If their parents had committed abortion, they would never have had these results.
If we even could let's say kill 10 Hitlers for one Jewish child, it wouldn't pay.
Therefore we have to oppose abortion, because Jews are practicing abortion. We oppose gay rights, because Jews become gays; that's the main problem we are worried about.
In Eretz Yisroel in the past year, there were twenty thousand legal abortions! Among Jews, Arabs don't abort. The Arabs are increasing like nobody's business. There were twenty thousand legal abortions, and most of them are in the army, the girls in the army get abortions from the government. You know what a ruination that is? From 1948 until about five years ago, 1 million abortions took place in Eretz Yisroel. You know what that means? A million Jewish babies were murdered! That's why we are against abortion. It's a terrible crime, and there is no kappara for that crime.
An innocent unborn child wanted to breathe the air and enjoy this world, to have a chance to do mitzvos, and these selfish people considered relations between men and women just for recreation and fun, and then when they have to have the responsibility to bear a child, they dodge it by murdering their baby. Oh you have to know, Hakadsoh Baruch Hu will not keep quiet, we're afraid of what's going to happen in Eretz Yisroel, their blood cries out from the earth.
And that's why even if it were true – I don't believe it's even right to favor abortion for goyim, because a ben Noach is also mechuyov to keep his mitzvos, he's chayev misah. But certainly the Jewish people are suffering as a result of this. Today there are no families anymore from which you can recruit children, who eventually will become baalei teshuvos.
For the sake of brevity the verse could have stated "He should be brought to one of Aharon's sons the Cohanim". But we see that it is preferable that Aharon himself should be consulted if possible. We are hereby taught that we should always seek the most authoritative Torah opinion if it is available. In accordance with the foregoing notes, the benefit which Hashem intended was to bring us in contact with the Torah teacher; and the most beneficial contact is with the greatest Torash teacher. Thus, when a question of Kashrus arises, we should perceive that Hashem caused this question to arise in order that we meet the Torah sage, who may have for us instruction and counsel even more important for us than the Kashrus question.
And when the sage is greater, then the encounter with him is so much more valuable. "Righteousness, righteousness you should pursue" (Dvarim 16:20); "Go after the best Bais Din...after the sages in the Marble Chamber" (Sanhedrin 32B). Not only will the greatest Sages give you the truest opinion, but their influence upon you will also be the most effective: "to Aharon the Cohen".