As a result of Mandarin being previously pushed at the expense of Taiwanese, not only are there many older people who came from the mainland with the fleeing Nationalists who can't speak Taiwanese fluently, but there are even many members of the younger generation, born and raised in Taiwan, who can't speak it well. But not speaking the dialect well isn't the same thing as not loving Taiwan.
由於過去強力推行國語運動打壓母語的不當，不要說許多來台大半輩子的外省族群，沒有機會學習台灣最通行的閩南語，連在台土生土長的一代，許多人都無法流利地聽講自己的母語，但這絕不等同於不愛台灣。