Your question can only be answered when you define what you mean by "Liberal Supporters."
Those who chastise Black citizens for supporting Obama or Hillary for that matter don't understand the very real fears and threats faced by the Black Community when the party of George Wallace stands to gain control of all four (I count the press, as Fourth Estate) branches of government.
The wealthy professional class which takes comfort in the existing status quo is showing the same tunnel vision style self-interest as is typically shown by Republican business types... in their support of Clinton and/or Obama.
(But this is not surprising since Big Money owns both parties and thereby controls an agenda that favors those with Money.)
The pragmatists like George Clooney and Michael Moore (both Taurus natives, by the way) face the likelihood that only one of the pre-vetted anointed ones CAN win. Therefore, they view a vote not made for Clinton as one thrown away.
My analysis is pivoted more towards the systemic corruptions that so unnaturally limit the voting pool for voters and STILL claim it's a Democracy.
I also take umbrage at the way the media gets to demonize or prematurely crown candidates.
I find the endless Team Sports analyses paralyzing and I think that's the point of them: any frame that is by nature antithetical and only allows for "2 sides of the issue" is destined to remain gridlocked (now and forever).
And I will continue to call out the use of stealth posters since their presence on this particular site flies in the face of its polled constituency.
In these times where Unfair Play has been refined to a fine art, and where corporations have the big bucks to pay people to pose as everyday commentators, many unfair advantages and prejudices can be tied to High Tech stealth performances.
Does THAT answer your question?
I am not a one-trick Pony. I look for the various causative factors that together work to generate events, outcomes, and even opinions.
This just came to me to make MY case clearer:
If you are hungry and you walk into the only open cafe where only Tuna fish sandwiches or steak sandwiches are offered... and while you prefer to eat vegetarian, you are very hungry...
Are you to be blamed for what's available on the menu?
That's how I view the comments that critique those who back Clinton.
People are largely TRAPPED.
At this point in time, Jill Stein and Gary Johnson are making more headway and there's LOTS of untapped fuel that could push both of them further. I hope that happens. But rather than blame The People for why they choose tuna or steak when they'd prefer tofu... I think those who control the restaurant should be the focus of any complaints.