For the most part, I see milkweed as a scourge in the orchard. They are taking over, squeezing out grass and fun flowers like lupin and sweet pea. And I don’t know how to reduce their aggressiveness.
On the other hand, I’m happy to have more than a few around to support the monarch butterfly caterpillars, as the species is besieged in so many places, especially in their wintering landscape in Mexico and points south.