Why did the QURAYSH want to fight and persecute the early Muslims?

As Islam spread, Muhammad threatened the local tribes and Meccan rulers because their wealth depended on the Kaaba. ... The Quraysh tribe controlled the Kaaba and drew their religious and political power from its polytheistic shrines, so they began to persecute the Muslims and many of Muhammad's followers became martyrs.

the difference is that white collar worker performs skills like worker as a scientist or well blue collars do physical work and they do services like being a cook.

c. free trade can lead to low pay for workers in poorer countries.