Classical liberalism (what you call "true" liberalism) focused on negative freedom. Modern liberalism (what you call "socialism" although it's not: modern liberals are still in favor of regulated but mostly free markets) focuses on ensuring positive freedom. Again, no big deal as long as we understand what each person means when they're talking about being a "liberal". In contemporary world, however, calling yourself a "liberal" in sense of classical liberalism tends to indicate you're that you're an academic, a libertarian, or some variety of free-market capitalist. In contemporary world, the usual meaning when someone says they're a "liberal" is that they're socially liberal, focus on equality and positive liberty. And the usual meaning is entirely correct, even though you apparently want to restrict use of the world to its meaning in classical liberalism.