I love to shop at the thrift stores that benefit charities, do you?
They are ok. The best things to get at thrift stores is clothing.  But it is still a business that feeds a capitalistic venture. 
Oh in my area its a retail establishment run by a charitable organization to raise money
Yes they raise money and meet a minilnal requirement to legally be considered charity but they still have a CEO who owns a mansion. . 
Oh ok are the people that work there volunteers?
After costs are paid, all remaining income from the sales is used in accord with the organization's stated charitable purpose. Costs include purchase and/or depreciation of fixtures (clothing racks, bookshelves, counters, etc.), operating costs (maintenance, municipal service fees, electricity, heat, telephone, limited advertising) and the building lease or mortgage.
Terminology.
Charity shops may also be referred to as thrift stores (in the United States and Canada), hospice shops, resale shops (a term that in
Charity shop
A charity shop, thrift shop or opportunity shop (colloquially referred to as an op shop) is a retail establishment run by a charitable organization to raise money. Charity shops are a type of social enterprise. They sell mainly used goods such as clothing, books, music albums, DVDs, and furniture donated by members of the public, and are often staffed by volunteers. Because the items for sale were obtained for free, and business costs are low, the items can be sold at competitive prices.