President Trump’s H-1B clampdown mixed with mass tech layoffs is cooling the Texas suburbs, and other parts of the country — and that may be the point.  Indian tech workers once turbocharged home prices north of Dallas. Now they’re gone — and a housing correction is already underway. For years, the suburbs north of Dallas were ground zero for one of the most extraordinary housing booms in America. Subdivisions multiplied. Prices soared. Builders couldn’t put up homes fast enough. The engine