Your statement doesn't align with reality, so I'll assume you're stating an opinion rather than a fact. Free speech is an inalienable right protected by the First Amendment and afforded to both individuals and businesses, that is a fact.
Free Speech is inalienable under the constitution, until it isn't. The First Amendment isn't a natural right. Humans have a natural right to free speech, businesses don't.
"Businesses" is not a useful distinction here, because an individual can be a business in their personal capacity. What matters are legal corporations, which would not exist at all if not for the government chartering them. The question is whether those fictitious legal entities have a right to free speech that is separate from such right of all the persons who constitute them.
Nonsense. Humans have inalienable rights. Businesses exist on our sufferance, they don't have an inalienable right to anything.