Psychologist James Thompson has a good article here on whether supporters of the political Left and Right suffer equally when they lose an election. He looked at some research and summarised it thus:
So, the conventional explanation is that we have a personality difference which accounts for a political and behavioural difference. Tough-minded people are conservative in military and social matters, and would be expected to give less of a damn about ruffled feelings. Neurotic worriers want governments to help the disadvantaged, favour foreign aid, public housing and immigration. A proneness to worry may conceivably drive them to feel the pain of others, and to imagine they might one day be in need of such support themselves, so it may not all be altruistic.
Finally, those prone to Social Desirability effects (also known as the Lie Scale, a measure of “faking good”, or being incredibly naïve) are socially liberal.
On the basis of this finding, the loss of an election will be felt more strongly by the Left, mostly because they are tender minded, but also because they are worriers who feel that the poor of the world need help which will now be denied them, and that all of society should desire to be like them in their liberal attitudes (or their desire to be seen as liberal and generous).
From a tough-minded, emotionally stable perspective, the great Democrat sadness, emotional upset and dismay is just the wailing of the mentally afflicted, wallowing in neurotic catastrophization and self-proclaiming virtue. Republicans see the Democrat response as infantile, the abject collapse of spoilt children who cannot believe how nasty life has been to them.
From a tender-minded, emotionally sensitive perspective the Republican win is just an extension of the insensitive, heartless and individualistic lack of concern they habitually show to anyone who gets in their way. Democrats see the Republican joy as demonic parents: violent, fascistic, dangerous; behaviours typical of oppressors who believe that life favours the brutal.
And the research seems to show that these differences are at least partly genetic, meaning these soft Lefties just can’t help themselves!
I would add to this the thought that culturally speaking the Left has pretty much had its own way since the 1960’s so it isn’t used to losing. I think most Leftists – and, truth be told, I myself – believed that they would go on turning the world ever more liberal until the heat death of the universe. Therefore this blip must have been galling. Whether it is just a temporary blip or whether progressive liberalism has reached its high water mark and from now its power will recede is hard to say. Certainly Trump’s victory, the British vote against staying in the EU in June and the rise of right-wing parties over most of Europe seems to be pointing to some kind of change. It could be that liberals have sensed that their cause has lost its seemingly unstoppable momentum. This could be a factor in all the hysterical blubbing.