white goods vs soft goods

white goods and soft goods both are nouns.

Word	Noun	Adjective	Verb	Adverb
white goods	Yes	No	No	No
soft goods	Yes	No	No	No

As nouns, soft goods is a hypernym of white goods; that is, soft goods is a word with a broader meaning than white goods:

white goods: drygoods for household use that are typically made of white cloth
soft goods: textiles or clothing and related merchandise

Other hypernyms of white goods include drygoods.

white goods (noun)	soft goods (noun)
drygoods for household use that are typically made of white cloth	textiles or clothing and related merchandise
large electrical home appliances (refrigerators or washing machines etc.) that are typically finished in white enamel