Should we lower standards? Lower quality of care? If the answer was easy we would have already implemented something.
Don't promote/require undergrad before med school. As in premed is not an actual degree anyone would ever get. Don't require multi year residency's, if the goal is education then 12+ hours days actively block that goal by inhibiting memory formation.
Shockingly both of those require zero money and would add up to 4+ more years of practice and lower education costs. However, US doctors don't want that as it would lead to lower pay just like every other country.
But no multi-year residencies? You are misinformed. It takes years to learn how to take care of the sick and dying. We don't just punish ourselves with lengthy training programs for fun.