A Question on Fixed Calculations

Looking at the current sky, we’ve got the Sun in Cancer and Mars moving through Gemini. It’s a busy period for data collection. I’m tracking how these planetary positions hit our charts using SkyToday to keep my schedule tight. But this has me thinking about a specific concept from the old school of Eastern astrology—the idea that the starting point of the zodiac is fixed based on stars rather than the equinox. If we use a fixed point that shifts away from the tropical seasons, aren't we decoupling the math from the actual solar cycle? I don't get how you can ignore the solstice and equinox markers when they dictate the physical light we experience on Earth. Does anyone actually believe the seasonal influence is less important than a theoretical alignment with distant constellations? It seems like a massive disconnect for anyone trying to apply astrology to modern, practical planning. I’d love to hear your take on why you’d prefer a static frame over the living, breathing seasonal cycle.