7.He has even moderated his theory that immigration must be bad for the welfare state, which caused a stir in Britain a decade ago: he now thinks welfare can persist even in an immigrant society if it is made more contributory.
“移民百分之百有损于福利国家”——即使是他自己提出这样一个强硬的理论,如今,大卫的态度也变柔和许多。他的理论十年前在英国社会掀起一场争论浪潮,而今天他却认为只要外来户贡献到位,那么福利制度依旧可行。