Nationalism does not convey a casual attitude of political being nor of social satisfaction - it is an emphatic enthusiastic rhetoric used to drum up the deep-gall instincts of a nation to seek freedom and to attain independence. Nationalism is a fighting word and term.
Therefore, when the Executive of a traditionally supranational Republic, which holds imperialistic territory and retains superpower ability, declares that he is a nationalist, the political and social balance of the said Republic becomes disrupted and confused.
Given that nationalism has a strong propensity to incite political violence since it assumes that a nation state is not totally sovereign, thus bestowing an apparent obligation upon citizens to initiate vigorous actions to secure what they might perceive as full independence of the homeland and in the absence of a clear and identifiable foreign and external enemy, nationalistic rhetoric runs the risk of setting neighbor upon neighbor and brother against brother within the state.
Unlike patriotism that encourages vigorous love and support for a country, nationalism, I will submit, incites a nation to fight against some identified or misidentified enemy for the full sovereignty of the possessed land.
The present danger presented within the United States (US) of suspicious packages and pipe bombs being sent to vocal critics of President Donald Trump is indicative of a tainted atmosphere that has been created under a flawed ideology of nationalism and amid a backdrop of a growing number of mentally ill persons within the population.
Political violence is detrimental to any Republic and it should be condemned and weeded out forthwith. Nationalistic rhetoric should be toned down because of its propensity for political violence and reciprocal acts.
A healthy atmosphere of unity should be promoted within the Republic in order to achieve greater development over the violent decline of the nation into a state of perpetual decay.