The ultra-rich are voting with their feet, and Florida is winning big . It’s no secret that billionaires aren’t happy with a 5% wealth tax on the California ballot — and one South Florida enclave is the newest landing pad for ultra-wealthy expats from the Golden State. Vargas has built custom homes worth as much as $150 million. Instagram/mannyavaras Manny Angelo Vargas is a builder of choice for billionaires and celebs. Getty Images for Haute Living Manny Angelo Vargas — an ultra high-end builder for billionaires and celebrities — told The Post he is seeing an “enormous influx of inquiries, purchases and relocations” from the Golden State. Vargas has built projects for stars like Lil Wayne and Rick Ross — as well as lower-profile billionaires who made their riches in California, especially the San Francisco Bay Area.…