Not sure what neoliberalism has to do with this. In economic terms the current Polish government is made up of the three most left wing parties in the country, the europhile opposition is a mix of hardcore neoliberals (PO) and softcore ones (post communists and left-liberals ex dissidents). The PiS campaign against the PO relied on  positioning themselves as the anti-liberals in all senses of that word - so no to economic neoliberalism, yes on social conservatism, and yes on nationalism with all those seen in Poland as part of the same package. Liberalism means moral degeneration, deregulation, economic inequality, secularism, and a cosmopolitan lack of loyalty to the nation in the political discourse of the Polish right.