Kimchi is already allowed in Chihuahua, as a rare word.
Chaebol should definitely join it. It's listed in many English language dictionaries these days, and often appears in the news.
One indication that it should be classed as a rare word for the time being is that its meaning is often explained when the word is used. For example, an article about the South Korean film
Parasite in
Time in February:
Emboldened by the country’s expanding democratic rights and flush with cash from chaebols—large family-run conglomerates—a group of auteurs led by the trio Bong Joon-Ho, Kim Ji-woon and Park Chan-wook rose in the ’90s with films like The Quiet Family, Joint Security Area and Barking Dogs Never Bite.
Even the
Wall Street Journal sometimes feels it necessary to gloss
chaebols as "family-run conglomerates".
So, a rare word for now, but definitely a word.