It is a political label and an academic label rather than an entity. [definitional]
No. The difficulty in labeling individuals "neoliberal" is precisely an effect of neoliberalism being a diffuse and contested political ideology/project not tied to a single organization. That there are varieties of neoliberalism does not mean that the concept is entirely without merit. It is a political label and an academic label rather than an entity. This does not mean its use implies propaganda rather than simply a pejorative.
Philip Mirowski & Dieter Plehwe (eds.), The Road from Mont Pèlerin, loc. 2095