In other words, if a stranger on the street politely tells you that Jesus loves you, would you conclude she is rude and even insincere and is really gloating over you?
If a stranger on the street politely tells you one of either "Trump rules!" or "Bernie rules!" (whichever you most disagree with) would you conclude she is rude and is really gloating over you?
Technically 'Trump rules' is a mere factual statement.
Which highlights the real problem with human communication - people don't communicate with simple facts. As Margaret Thatcher observed, being powerful is like being a lady; If you have to tell people you are, then you aren't.
The statement 'Trump rules', or 'Jesus loves you' is indicative of the fact that the speaker is concerned about your failing to share their opinion. They either believe that you don't know some important fact, or that you don't agree that it is a fact at all.
Nobody bothers to tell other people things that are obvious and clearly agreed upon, other than to build intimacy in close relationships. You might sigh, turn to your wife, and say 'It's raining', when what you really mean is 'the rain will affect our plans or mood'. But you would be considered slightly crazy if you approached a stranger and told them such an obvious fact.
If someone makes a simple factual claim, there's almost certainly a subtext. Nobody thinks you are unaware of the fact that Trump is President; If they say 'Trump rules!', they are seeking to convey their pleasure at this fact, not the fact itself.
Limiting our responses to the assumption that others have no subtextual meanings behind their statements is just stupid. Assuming that their subtext is benign is nice, but not necessarily safe.
Both 'Trump rules' and 'Jesus loves you' are most likely to signal a deep insecurity - a very real concern on the part of the speaker that their claim might be untrue, or undesirable - and is either a plea for confirmation, or a challenge to dare rebut the speaker's belief.