Kevin O’Leary does not mince words. The Shark Tank star and chairman of O’Leary Ventures has built a public brand on blunt financial advice. Lately he finds himself at the center of two heated debates that reveal tensions in American markets and infrastructure. One pits him against politicians eager to restrict Wall Street money from single-family homes. The other draws him into clashes with residents alarmed by his ambitious push into AI data centers. In late May, O’Leary took to X to push back against growing calls to limit institutional investors in housing. “Institutional investors are being blamed for everything happening in housing right now,” he wrote. “But people forget what happened during the financial crisis.” He pointed to 2008. When markets froze and home values plunged, institutional buyers stepped in with capital others lacked. “Without it, things could have been far worse for average Americans,” O’Leary wrote, according to a Yahoo Finance report . His message carried a warning.…