Although most modern Jews have abandoned the practice of Kapores, in some parts of the community, it is still common. I'm not sure what the Masorti movement thinks it will accomplish by joining with the SPCA -Tel Aviv, ince the parts of the community that are practicing kapores aren't the parts likely to care what the masorti movement does, but all in all, it can't hurt.
In the story from which I took this post's name (an adapted tale based on the original story by Sholom Aleichem) the author in fact points out that the practice of taking a chicken (male for men, female for women) swinging it over one's head to "catch" one's sins, and then slaughtering it, is not exactly halacha ( Jewish law). And while in general one ought not to depend on fiction for accurate portrayals of Jewish law, in this case, it happens to be correct. Not only is "Where is it written?" a good response, but where it is written, the rabbis aren't too happy with it, considering it (Like many folk customs which have become embedded in Jewish practice) akin to idolatry, or at lest very improper.
And reasonably so, while it might be a midat chesed (act of mercy) to buy a chicken which one will then donate to the poor to eat (although that does raise some questions about how that came about... really? We're giving our sins to the poor to eat? Hmmm. I hear a sin eater story in here somewhere for those of us familiar with that southern custom), the problems with the ritual as a whole are numerous. For now, let's set aside the problem of tzaar ba'alei chaim - the requirement not to be cruel to animals (in this case, by packing them in itty bitty crates sitting around in the sun all day until it's time for them to be grabbed and swung around by the feet) and concentrate on the symbolism of the custom itself.
While there seems to be some kind of yearning for authenticity as played by certain elements of the Jewish community which favor dress styles not native to Israel, but rather early modern Europe, I've never been able to fathom why people attach their sentiments to these kinds of customs (including within the community, but without it as well). There's somehow a sense that it looks or feels more authentic - but how could it be? If Judaism and our peoplehood is based upon our connection to God through God's commandments, as the Torah tells us, then one couldn't possibly repent by swinging a chicken around.
I far prefer the formulation of the Talmud (Brachot 17a) (See the bottom of the post) which likens the fat that one loses during a fast to the fat offered as a sacrifice in the times when the Temple stood. That makes far more sense to me.
Most importantly, if w are repenting, we cannot hope to shed our sins elsewhere without the ful act of teshuvah that goes with it. Whether we are speaking of ourselves as individuals, our individual communities, or Israel as a whole, our own sins cannot be displaced by any symbolic act, whether we're talking about swinging a chicken or saying that the other party involved has done bad things and so they have to repent first. NO, we are responsible for the sins of ourselves, and the sins of our people. If we wish for peace, we have to act first to recognize and admit our sins; to make reparation to those whom we've harmed; to confess to God - because in doing so, we humble ourselves and take into our hearts that our acts, whether accidental or intentional, whether preemptive or retaliatory, were wrong; and then to not do it again when the opportunity presents itself.
Stop building settlements, stop demolishing homes, stop blaming others for acts over which we have agency. Goldstone isn't our enemy, and taking on against him, as the Rabbinical Assembly has just, entirely ridiculously, done, will not bring peace.
As long as we treat acts for which we need to repent as thought they were public relations bloopers which can be addressed if we only change our spin, there will not be kaparah, atonement, no matter how long we fast on Yom Kippur, no matter how many chickens we swing. We have to do the work ourselves.
(From the Yom Kippur Haftarah Isaiah 58:2-7)
They ask Me for the right way,
They are eager for the nearness of God:
3 "Why, when we fasted, did You not see?
When we starved our bodies, did You pay no heed?"
Because on your fast day
You see to your business
And oppress all your laborers!
4 Because you fast in strife and contention,
And you strike with a wicked fist!
your fasting today is not such
As to make your voice heard on high.
5 Is such the fast I desire,
A day for men to starve their bodies?
Is it bowing the head like a bulrush
And lying in sackcloth and ashes?
Do you call that a fast,
A day when the Lord is favorable?
6 No, this is the fast I desire:
To unlock the fetters of wickedness,
And untie the cords of the yoke
To let the oppressed go free;
To break off every yoke.
7 It is to share your bread with the hungry,
And to take the wretched poor into your home;
When you see the naked, to clothe him,
And not to ignore your own kin.
When R. Shesheth kept a fast, on concluding his prayer he added the following: Sovereign of the Universe, Thou knowest full well that in the time when the Temple was standing, if a man sinned he used to bring a sacrifice, and though all that was offered of it was its fat and blood, atonement was made for him therewith. Now I have kept a fast and my fat and blood have diminished. May it be Thy will to account my fat and blood which have been diminished as if I had offered them before Thee on the altar, and do Thou favour me.. (Brachot 17a)