I think it's a meant to be tongue in cheek. However I agree that "Make $object $adjective again" is inextricably linked to the Trump campaign, so if anyone is using it I hope they realise that they'll be either be thought of as right-wingers or satirists by much of their audience.
Well, that would be evidence that it is quite extricably linked to the Trump campaign.
There is prior art for campaign slogans escaping the political world and transcending their original partisan meanings. "A chicken in every pot", "Don't Mess with Texas" ("slogan that began as anti-littering campaign; later adopted for political and other purposes" - Wikipedia), etc. Wikipedia also suggests it has been used prior to Trump, including by both Bill and Hillary Clinton (https://en.wikipedia.org/wiki/Make_America_Great_Again ).
It's a relevant comment. The author chose a title with heavy ties to politics. They shouldn't then be surprised when people bring that up in discussion. I personally also think it's not wise to choose a title that enforces a slogan with ties to hateful politics unless that was your goal from the start.
This is silly to say. Why deliberately miss the point?
"Finding" some hateful is not the same as being on the receiving end of types of hate that have caused a lot of violence and persecution over centuries.
Like I said earlier, why deliberately miss the point? "Make America Great Again" is a hateful slogan. You're purposely denying that to try to prove some point.
No, I'm simply stating a fact. There is no reason for you to presume motive. You have chosen to perceive the slogan as hateful. This is your belief, your perception. It's not present in the slogan itself.
It's not a "fact." But really, if you truly think that there is no hate in that slogan, then there's no point having this conversation, because I know what kind of person you are.
While it might be straying slightly towards the off-topic, the second part is a very astute observation and an interesting connection that I did not personally make at first glance.