Yes on the big L libertarian, it is best to have certain little L libertarian ideals as part of an ideology but not as the whole fabric of it to do so would be ignoring reality.
Confession time. There is some of the libertarian ideology in me to the extent that I want as little government in my life as possible. The federal government should only do what the constitution calls for and nothing more. Providing for the general welfare does not mean redistribution of wealth or controlling every aspect of our lives. Our military should not be involved in humanitarian efforts around the world but only to protect and defend. The federal reserve system has grown into a monstrous organization which is sucking the economic life from our republic. Most of all we should have protection for our electoral process, the pillar of freedom.