In my last post, I inadvertently left out an important aspect of the process.
There is a back door to avoiding, or at least diminishing, the negative impact of having the sar of the country in chutz l'aretz strengthen its dark side by taking a portion of the kedusha we've generated.
Here's how we can retain the kedusha generated by our mitzvot, even when they are done in chutz l'aretz.
If a mitzvah is completed outside of Israel, but the Jew who does the mitzvah really and truly yearns for geula and also yearns for Eretz Yisrael, the kedusha is able to retain its strength on its journey to Eretz Yisrael, thereby accomplishing something spiritually similar to what it would have accomplished if the mitzvah had actually been done in Israel.
So if you can't, for a halachically-valid reason, live in Israel right now... yearning for it, and longing for the Redemption, are your best spiritual defense.
There now. Isn't that better?