68 years later, the US President, uses a heinous crime and a tragedy, for a few more votes.

So Emmett Till should never be honored on a national level?

He should be honored! He should be honored on a national level by the people (the nation).
Not by a party or a career politician.

How exactly do you arrange that on a national level without the president being involved? Especially if you want a permanent memorial?

So you only honor historical events if your president allows it? All your monuments are there because someone in White House allowed it to happen?

All your monuments are there because someone in White House allowed it to happen?

Yes, that’s how national monuments work.

That's quite beneficial for the people in power. So, you as a nation are also very selective when it comes to historical events you want to preserve?

How is it beneficial? They don’t get any money or power out of it. They just memorialize something that needs memorializing and, because it’s federal, taxpayer dollars go to its upkeep to ensure it stays looking good and doesn’t get trashed. There’s also the matter of protection. Considering a sign memorializing Till was shot, federal protection sounds like a good idea to me.

The monument for Emmett Till is very important. Children and Grandchildren of those that did the lynching are still living there.

I thought the president is being paid for his work. Is he not? Then again I wasn't talking about monetary benefit. The current staff in the White House could have made all this possible without themselves being mentioned or present. But they are being mentioned and are present because it's beneficial for their careers (that's how they earn their Dollars and Influence and Power).