House Speaker Mike Johnson’s comments to Fox News this week resemble a racist conspiracy theory that certain groups of people — particularly white people in Europe and North America — are being intentionally replaced by immigrants and people of different ethnic backgrounds. That’s according to Philip Bump, an analyst at The Washington Post who dived into the Louisiana Republican’s response to Fox News on Wednesday night about his reaction to President Joe Biden’s new executive order on immigration. “This half-measure executive order he just did actually exacerbates the problem,” he told host N…