Do you really want to help more people get involved with Shugden?
Even His Holiness Dalai Lama who propitiates Pelden Lhamo but does not promote her but Shakyamuni.
Why don't you promote a perfect being free of all mistakes like Shakyamuni Buddha who took three countless aeons to become a fully enlightened being as it's mentioned in the Parchin texts by Panchen as studied in Drepung Loseling and Dialectical School in McLeod Ganj Dharamsala (No I don't believe Panchen was a previous life of Shugden-so let's not go there please).
Why don't you promote something that the whole wide world of Buddhism accept? Shakyamuni Buddha is a perfect Buddha free of all obscurations and perfect in any aspect according to all texts, all sutras, Kangyur, Tengyur, all lineages, all schools of Buddhism?
If we have to please everybody we'll be very busy, won't we? Palden Lhamo is enlightened but she takes the form of a Mamo and might not be suitable for everyone. Dorje Shugden on the other hand takes the form of a monk and when in trance can give teachings and initiations. No other Dharma protector can do such a thing. No other Dharma protector aside from Dorje Shugden can give Dharma talks in a trance. Because Dorje Shugden is also a Dharma teacher. And that is one unique aspect of Dorje Shugden that makes him an object worthy of refuge.
Where is Dorje Shugden's mistake? can you present to us please? He did told the Dalai Lama to leave Tibet at the exact time, did he not? The current ban has also been predicted by Trijang Rinpoche too so it is all according to plan. But at the same time there are also people who want to do something about it to make it lift sooner so that more people can benefit and less people will suffer. Until today, NONE of the monks in Shar Ganden or Serpom gave up the Dalai Lama in favor of Dorje Shugden. Does that tell you something?
Shakyamuni is free from faults but can any of us relate to him properly, and if we do can we rely on him and gain results? No. Because our times are too diluted with distractions and comfort that we can no longer focus and extract the meaning from Shakyamuni directly. We need help to do so thus the introduction of Dharma protectors in Vajrayana. Why is it that Tibetan Buddhism has so many prominent teachers when compared to the other 2 traditions? because we have the help of a Dharma protector to help clear obstacles. That alone is definite proof.
Shakyamuni's tradition has been carried on by Nagajurna, Guru Rinpoche, Milarepa, Sakya Pandita, Atisha, Tsongkhapa, and many more masters up to today, and they are still living and valid because each and every teacher takes the original teachings and packages it in a way where the student can practice and perceive. That is why Vajrayana is more fruitful compared to the other 2 traditions. The prominent masters in Vajrayana alone outnumber those of the other two by a lot.
To carry on and promote these masters and what they have taught, for example the Dorje Shugden practice, is to also carry Shakyamuni's teachings and blessings as the lineage is unbroken. No teacher would ever allow an unripe student to teach his or her own students, and the teacher will make sure that the student is ready in all aspects, and has received and understood the full transmissions and have put them into practice before they can teach. To invalidate Dorje Shugden is to invalidate this lineage system that stems from Shakyamuni. To promote the teachings of these masters is the same as promoting Shakyamuni because the essence and results are the same.