One could use that extra daylight without DST by simply doing things in the morning, or having a different work schedule.
Obviously, DST is nice if you have a work schedule that lets you take advantage and you aren't a morning person. But again, that's all dependent on your habits, not simply liking daylight. A morning person with a normal work schedule could very well say that they like daylight and therefore are against DST.
What you say is true but since it applies to a relatively small percentage of the population the energy savings of year-round DST would be negative. We know this because that is what happened when there was year-round DST, during Jimmy Carter's presidency, as a result of the Arab oil embargo.
From an environmental and energy perspective the current DST calendar is nearly ideal.
Obviously, DST is nice if you have a work schedule that lets you take advantage and you aren't a morning person. But again, that's all dependent on your habits, not simply liking daylight. A morning person with a normal work schedule could very well say that they like daylight and therefore are against DST.