There were a number of fairly negative comments to my article encouraging the cantor in a Reform Temple to teach his students how to light Shabbos candles. One asked if he officiated at the Reform intermarriage weddings. Another pointed out that the Reform, unlike the Torah; claim if either parent is Jewish the children are Jewish, so it could be that the majority of so-called Reform Jews are not even Jewish.
The fact is the comments are true, but there is an important lesson they are overlooking.
There is a Torah concept of butal (nullification). In certain cases if a forbidden object is mixed with enough permitted objects that forbidden object is considered nullified and the mixture becomes permitted. But one of the many stipulations is that the single object is not unique, important, noticeable or such. If the object would be unique, then no matter how many other things are mixed with it that important object does not become nullified.
Yes, many, perhaps even the majority of the "Reform Jews" are not Jewish, but many are Jewish, and we cannot ignore those Jewish souls who have not yet had to opportunity to learn the truth about Hashem and His Torah.
If we are commanded to be a light unto the Nations, all the more so are we to be a light onto our own…no matter where we find them.