To me...the problem is what does the word "support" mean in this context?

Similar to "Support Our Troops". I do support our troops. I pay my taxes that pay for them. I hope every day that they will come home out of harm's way.

To me that is "supporting our troops."

So perhaps to "support the president" is to pay your taxes and hope he is successful? And not in harm's way?

Nothing in either statement suggests I cannot criticize, complain, or even carp!