There may have been some good thinking when this was started, but in today’s world,Ijust can’t see any purpose. Go to standard time or daylight saving time, and just leave it alone.
AZ and HI don't give into this madness. Both just stay on standard time.
In 2018 Florida passed a law that would put the state into permanent DST since that helps their tourist/sunshine situation, but the law doesn't have any teeth until it gets reinforced at the federal level.
So even this rather nonpartisan issue would be an absolute mess to handle at the national level because the lower 48 would need to agree to standard or daylight.. there's no point in having a patchwork of some states preferring early light and others wanting evening light.