Californians called many migrants “okies” because
the migrants worked in the fruit-picking industry.
the migrants were old and ready to retire.
californians wanted to discriminate against them.
californians wanted to welcome them.

I believe the answer is:

The migrants worked in the fruit picking industries

The climates in california enable various varieties of fruits to grow and attract more than a million immigrants to come and work in the fruit picking industries. The term 'okies' were used in a derogatory manners because it sounded like an animal or a pet name.

i just need the points

explanation:

union blockade

explanation:

the union blockade in the american civil war was a naval strategy by the united states to prevent the confederacy from trading.

the blockade was proclaimed by president abraham lincoln in april 1861, and required the monitoring of 3,500 miles (5,600 km) of atlantic and gulf coastline, including 12 major ports, notably new orleans and mobile. those blockade runners fast enough to evade the union navy could only carry a small fraction of the supplies needed. they were operated largely by british citizens, making use of neutral ports such as havana, nassau and bermuda. the union commissioned around 500 ships, which destroyed or captured about 1,500 blockade runners over the course of the war.