content: No, India mostly exported painted cotton and woven silk textiles in the 1700s.  Linen was a very different type of thing, socially speaking, back in the Georgian and Victorian periods.  Used mostly for underwear due to its durability and breathability, it wasn’t nearly as common as a “top” garment.  It was an economy fabric back then, cheap to grow and associated with the lower classes.  Anyone who had any kind of money wore wool or silk.    The Jews weren’t getting rich off the linen trade.