RACISM!!!

the mexican immigrants during the 1930s and the great depression were viewed as a large problem and often smoked weed during their breaks and on the weekends...the texan authorities connected marijuana to crime in texas and in other south west areas...and blamed mexican immigrants for crime and associated it to marijuana use....complete bullshit
Thats exactly what i was gunna say! I did some research on the internet and that came up as the reason it was made illegal! basterds lol