You snip out the important bits. It's not that no one can use the great seal It's that if it's used in such a way where a reasonable person wouldn't believe whatever the item is is actually represented to be by the federal government.

If the reasonable person would not consider it to be something by the federal government then you are totally allowed to use it. It is one of the consequences of free speech and having a public government. Because this doesn't fall under normal trademark law or even a normal copyright.

So it very much becomes a question for the courts to answer. People's political bias doesn't factor into it. The courts measurement of a reasonable person standard is what does.