Reader: I think your site is wonderful and full of the wisdom
and truth of Torah. I came from a non-observant family and am a baal
Mesora: I appreciate what you wrote, as well as how delicately you approached this subject.
Sinas chinam (unwarranted hatred) is prohibited and a great sin. But this should not be confused with one's honesty which is also a great command, honesty of what Torah is, as well as what it isn't.
I must teach what is flagrantly against the Torah, just as all observant Jews and leaders have endorsed. We must deplore what is wrong and certainly what is idolatrous, even if held by Jews - as do many. This is not sinas chinam (unwarranted hatred). At the same time, one must stop and assist a Jew - be he Lubavitcher, Conservative, Reform - if he needs any help whatsoever, one must also simultaneously deplore certain beliefs they have, as both - assistance, and denouncing false beliefs - are Torah obligations. We hold nothing against these individuals personally, but we must denounce their views, and those of others who violate Torah. This should be done by citing sources and showing the underlying truth of correct concepts, and hopefully showing their error, thereby saving him from ultimate disaster - the destruction of his soul.
It is essential that we approach the ideas clearly and objectively, not confusing personal hate with absolute Torah adherence; the former is demonstrable of a flawed personality and is assur (prohibited), the latter is an objective chiyuv (obligation). This is not so easy, but we must train ourselves to do this.
The Torah in so many areas teaches us not to follow idolatrous principles. We must echo the Torah's ideology. If some take it personally, this type of subjective attack must not cause our steps in line with the Torah's objective path to falter, and we must not be alarmed or diverted from Torah objectives due to the unsettled nature of some, who incorrectly feel we are violating sinas chinam.
If one would assume that sinas chinam is defined as opposing another Jew's beliefs, then all the great prophets who ever rebuked the Jews would also be categorized as sinners. Additionally, we must the accept Reform and Conservativism as a valid form of Judaism.
The Torah - by definition - must oppose all that which is in violation to itself. Torah followers must adhere to the Torah and speak out against violations, not violators. Masses of Jews following certain beliefs do not validate such beliefs, and shouldn't weaken our stance.
The only barometer of what is true, is Torah.