Any vendors who start selling Chinese stuff, is part of deal to not allow excluding items from search results? Amazon do not have any options to excludes items

Any vendors who start selling Chinese stuff, is part of deal to not allow excluding items from search results? Amazon do not have any options to excludes items that ship from China. https://daraz.pk https://daraz.pk, largest online shopping store in Pakistan bought by AliBaba recently, has done the same. There is only one checkbox named China to show only Chinese items but there is absolutely no way to exclude items shipping from China.