Hynix has been empty for years now and paying $590,000 in taxes.  

It will now bring in $13,511,000 in salaries to Lane County which do not now exist.  (229 X $59,000 per year)

The $590,000 per year in taxes will continue to come in.

Somehow, I believe an additional $13 million in salaries is a positive thing.  These people will buy rent housing, buy food, pay property taxes, etc.