The polling you cited lists a 77% approval rating for 'Committing to a government-wide focus on racial equity'. This means that either most people do not know what "equity" means, or the polling is not reliable (or both). The polling was not accurate just a few months ago, and I don't have any reason to believe it would be more accurate today.
There have been reports of potential threats at the inauguration and subsequent events. If you want to say that these aren’t true then that’s fine, but we did just have people storm into the US Capitol so it’s fair to say that we should have protection for the congresspeople and civilians that work in the Capitol.
I am sure there are
reports of
potential threats to all sorts of things. This doesn't mean the people who are making these threats are nothing more than 'keyboard warriors' and are otherwise not serious.
Another way of looking at current troop levels in DC is that we have more troops in DC than we do in Iraq and Afghanistan combined. I don't think any serious person believes we need more troops in DC than we do have fighting ISIS.