Back when things were segregated what would people who were Asian, Latino, etc. do? Would they also not be allowed to go into the business/use the amenity or would they be able to because they are not black?
Not to discourage further responses, but similar questions have been asked in the past:
What was it like to be Asian/Latino in the segregated south? Did the segregationist laws still apply to you?, by a now-deleted user
It's 1935, I'm Mexican and I walk into a segregated Southern diner. Do I sit on the black side, or the white side?, by u/Kugelfang52
How were non-black minorities treated in the Jim Crow South?, by u/dubstripsquads
Were Hispanic/Latino Americans and Immigrants considered "colored" in Pre-Civil Rights America? Were they lacking in the same Rights as black Americans?, by u/chaunceyvonfontleroy
While you wait for fresh answers from qualified experts, you may be interested in previous responses related to the topic.
How were non-black minorities treated in the Jim Crow South? with a response by /u/Dubstripsquads.
Pre-Civil rights movement in the states, how were other races segregated? ( i.e hispanic, asian) Did all POC Go to "black" Schools? with a response by /u/UrAccountabilibuddy