How is it that you alone understand these things, and no one else?
That is very inaccurate. I am merely doing my part and carrying the torch. Many, many important personalities before me have discovered and advocated the same reform I am championing. Similarly there are many others (and their number is growing steadily by the day) who currently share this opinion with me.
In fact, you will be shocked to know that even the very committee who recommended the Lahiri sidereal ayanamsha as the Indian standard in the 1950s expressly stated that it was only a partial reform, and that further reform was required to return the zodiac to proper alignment with tropical seasons. Here are their words, and background, copied from research published by Dieter Koch.
Lahiri was inspired by the astronomy historian S. B. Dikshita, who in the late 19th century wrote an important book on the history of Indian astronomy [History of Indian Astronomy, Part II]. Dikshita came to the conclusion that, given the prominence that Vedic religion gave to the cardinal points of the tropical year, the Indian calendar should be reformed and no longer be based on the sidereal, but on the tropical zodiac. However, if such a reform could not be brought about due to the rigid conservatism of contemporary Vedic culture, one should choose the Ayanāṃśa in such a way that the sidereal zero point was in opposition to Spica, because this would be in accordance with the zodiac of the 16th century astronomer Ganeśa Daivajña.
A similar point of view was maintained by the Calendar Reform Committee, when it recommended the Lahiri Ayanāṃśa: “This recommendation is to be regarded only as a measure of compromise, so that we avoid a violent break with the established custom. But it does not make our present seasons in the various months as they were in the days of Varahamihira or Kalidasa. It is hoped that at not a distant date, further reforms for locating the lunar and solar festivals in the seasons in which they were originally observed will be adopted.” (Calendar Reform Committee Report, p. 5)