Can a non-Jew get the B-5 investor visa?

Yes. The B-5 investor visa is not restricted to Jewish applicants. It is available to foreign nationals of most countries, regardless of religion or ethnicity. The criteria are purely economic: the quality of the investment, the viability of the business, and the investor's personal background. Non-Jews who do not qualify for Aliyah under the Law of Return often find the B-5 route to be their most practical pathway to long-term residence in Israel.