Very good summary.Dirius, unfortunately, you are yet again reverting to mere repetition of your generalized thesis. Declaring your preferred system to be superior while ignoring evidence to the contrary doesn't make it superior. It just means that your mind was made up, regardless, and you had no intention of listening to opposing views. or reading the references offered to you. I don't think you've read very much about Pluto or worked with it in hundreds of natal charts, as some of us have.
Just to recap, the OP asked about Pluto's demotion to dwarf planet status, which happened in an international convention of astronomers in 2006; and its long orbital period.
First, astrology and astronomy shared a common history, but have parted in many of our ways during the past centuries. If astrology went by astronomy's rules, we would have no interest in applying planetary positions to human conduct, and would be using a heliocentric model of the solar system. A heavenly body or sensitive point can operate in astrology independently of its status or non-status in astronomy.
Of course, the trads' idea that Pluto is turfed out because of its astronomical dwarf planet status is another smokescreen. The neo-cons won't use Uranus or Neptune, either, and they are massive.
On the second point, there are two schools of thought. One is that Pluto wasn't operative in human history prior to its discovery in 1930, when it was in Cancer. By extension, we don't need to concern ourselves with Pluto before then. The other school is that we have tons of historical information and detailed biographies of people prior to 1930, so it is a simple enough job to match up events with Pluto's position.
On the generational issue, this isn't a problem. Most people have Pluto in contact with a natal planet or chart angle, and like you-- they feel it. Many aspects of our lives operate at a generational level, moreover. Pluto in Leo corresponded with major changes in the social construction of childhood; and an explosion of entertainment media.
Just to cite an example from a traditional planet, Saturn stays in one sign for over two years. Many "Woodstock generation" Aquarians and Pisceans experienced natal Saturn opposite sun. Saturn symbolizes older authority figures. Given other chart factors, this was the generation that protested authority, and coined the slogan, "Never trust anyone over 30."
Like MissScorpio, the OPer, many of us profoundly feel the effects of astrological Pluto in our lives. And we won't be inauthentic about it, regardless of what more Saturnian types think they know about it.